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1. Determination of the Size Distribution of Metallic Colloids from Extinction Spectroscopy

Author

Yehia Mansour, Yann Battie, Aotmane En Naciri, and Nouari Chaoui

Subjects
colloids, nanoparticle size distribution, extinction spectroscopy, Mie theory, Chemistry, QD1-999
Abstract

In this paper, we explore the ability of extinction spectroscopy to characterize colloidal suspensions of gold nanoparticles (Au NPs). We demonstrate that the Au NPs’ size distribution can be deduced by analyzing their extinction spectra using Mie theory. Our procedure, based on the non-negative least square algorithm, takes advantage of the high sensitivity of the plasmon band to the Au NP size. In addition, this procedure does not require any a priori information on the Au NP size distribution. The Au NPs’ size distribution of monomodal or bimodal suspensions can be satisfactorily determined from their extinction spectra. Finally, we show that this characterization tool is compatible with in situ measurement and allows following the change in NPs’ radii during laser exposure.

Published
2021
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2. One-Step Formation of Plasmonic Cu Nanodomains in p-Type Cu2O Matrix Films for Enhanced Photoconversion of n-ZnO/p-Cu2O Heterojunctions

Author

Yerila Rodríguez-Martínez, Lídice Vaillant-Roca, Jaafar Ghanbaja, Sylvie Migot, Yann Battie, Sidi Ould Saad Hamady, and David Horwat

Subjects
Condensed Matter - Materials Science, Materials Chemistry, Electrochemistry, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, Physics - Applied Physics, Applied Physics (physics.app-ph), Electronic, Optical and Magnetic Materials
Abstract

Plasmonic Cu nanoparticles were in-situ grown into a Cu$_2$O semiconductor matrix by using reactive magnetron sputtering and adjusting the amount of oxygen available during the synthesis in order to prevent the oxidation of part of copper atoms landed on the film surface. Varying only the oxygen flowrate (OFR) and using a single Cu target it was possible to observe the evolution in the simultaneous formation of metallic Cu and Cu$_2$O phases for oxygen-poor conditions. Suchformation is accompanied by the development of the surface plasmon band (SPB) corresponding to Cu, as evidenced by UV-Vis spectrophotometry and spectroscopic ellipsometry. The bandgap values of the elaborated composites containing embedded Cu plasmonic nanodomains were lower than the bandgap of single-phased Cu$_2$O films, likely due to the higher defect density associated to the nanocrystalline nature of films, promoted by the presence of metallic Cu. The resistivity of the thin films increased with more oxidative deposition conditions and was associated to an increase in Cu$_2$O/Cu ratio and smaller and more isolated Cu particles, as evidenced by high resolution transmission electron microscopy and X-ray diffraction. Photoconversion devices based on the studied nanocomposites were characterized by I-V and spectral photocurrent measurements, showing an increase in the photocurrent density under light illumination as consequence of the plasmonic particles excitation leading to hot carrier's injection in the nearby ZnO and Cu$_2$O semiconductors., Comment: ACS Applied Electronic Materials, American Chemical Society, 2022

Published
2022

3. Structure-Dependent Chiroptical Properties of Twisted Multilayered Silver Nanowire Assemblies

Author

Gero Decher, Matthias Pauly, Wenbing Wu, Yann Battie, Vincent Lemaire, Institut Charles Sadron (ICS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), International Center for Frontier Research in Chemistry [Strasbourg, France] (icFRC), International Center for Materials Nanoarchitectonics (WPI-MANA), ANR-10-LABX-0026,CSC,Center of Chemistry of Complex System(2010), Battie, Yann, and Center of Chemistry of Complex System - - CSC2010 - ANR-10-LABX-0026 - LABX - VALID

Subjects
Circular dichroism, Nanostructure, Materials science, chiral nanostructures, Aucun, Nanowire, Physics::Optics, Bioengineering, plasmonics, Condensed Matter::Materials Science, nanowire assemblies, General Materials Science, Plasmon, business.industry, Mechanical Engineering, Metamaterial, General Chemistry, Condensed Matter Physics, metasurfaces, Transfer matrix, [PHYS.COND.CM-MS] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], circular dichroism, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Optoelectronics, Nanometre, business, Intensity (heat transfer)
Abstract

International audience; The optical properties of chiral plasmonic metasurfaces depend strongly on their architecture, in particular the orientation and spacing between the individual building blocks assembled into large arrays. However, methods to obtain chiral metamaterials with fully tunable chiroptical properties in the UV, visible and near infrared range are scarce. Here, we show that the chiroptical properties of silver nanowires assembled in helical nanostructures by Grazing Incidence Spraying and Layer-by-Layer assembly can be finely tuned over a broad wavelength range using simple design principles. The angle between the oriented nanowire layers controls the intensity of the circular dichroism, reaching ellipticity values higher than 13° and g-factor values up to 1.6, while the shape of the circular dichroism spectra depends strongly on the spacing between the layers which can be tuned at the nm-scale. The structure-dependent optical properties of the assembly are successfully modeled using a transfer matrix approach.

Published
2021

4. Macroscopic mapping of the linear in-plane anisotropy of nanocellulosic thin films by Mueller matrix polarimetry

Author

Randy Mujica, Anusree Augustine, Matthias Pauly, Vincent Le Houerou, Gero Decher, Yann Battie, Olivier Felix, Institut Charles Sadron (ICS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), and Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique

Subjects
[SPI.GCIV]Engineering Sciences [physics]/Civil Engineering, General Engineering, Ceramics and Composites
Published
2023

5. Chiral optical scattering from helical and twisted silica nanoribbons

Author

Reiko Oda, Sylvain Nlate, Emilie Pouget, Yann Battie, Naoya Ryu, Takashi Sagawa, Yutaka Okazaki, and Peizhao Liu

Subjects
Quantitative Biology::Biomolecules, Morphology (linguistics), Materials science, Metals and Alloys, Physics::Optics, General Chemistry, Molecular physics, Catalysis, Quartz substrate, Light scattering, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Materials Chemistry, Ceramics and Composites, Physics::Chemical Physics, Boundary element method
Abstract

Helical and twisted silica nanoribbons, deposited in an in-plane direction and with a random orientation, on a quartz substrate showed chiral optical scattering, and the helical nanoribbons had a g-factor of the order of 10-2 below 250 nm. Their signs depend on the handedness of the nanohelices. The effect of the morphology and the orientation of the helices on the chiral optical scattering were investigated with simulations via the boundary element method.

Published
2021

6. Nanoscale Bouligand Multilayers: Giant Circular Dichroism of Helical Assemblies of Plasmonic 1D Nano-Objects

Author

Hebing Hu, Harald Giessen, Gero Decher, David J. Norris, Lisa V. Poulikakos, Sribharani Sekar, Oriol Arteaga, Matthias Pauly, Vincent Lemaire, Yann Battie, Wenbing Wu, Institut Charles Sadron (ICS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Universitat de Barcelona (UB), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), and University of Stuttgart

Subjects
Circular dichroism, Materials science, Nanostructure, chiral nanostructures, Aucun, Nanowire, General Physics and Astronomy, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, plasmonics, Nano, nanowire assemblies, General Materials Science, Anisotropy, Plasmon, Nanocomposite, General Engineering, 021001 nanoscience & nanotechnology, metasurfaces, 0104 chemical sciences, circular dichroism, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Nanorod, 0210 nano-technology
Abstract

International audience; Chirality is found at all length scales in nature, and chiral metasurfaces have recently attracted attention due to their exceptional optical properties and their potential applications. Most of these metasurfaces are fabricated by top-down methods or bottom-up approaches that cannot be tuned in terms of structure and composition. By combining grazing incidence spraying of plasmonic nanowires and nanorods and Layer-by-Layer assembly, we show that nonchiral 1D nano-objects can be assembled into scalable chiral Bouligand nanostructures whose mesoscale anisotropy is controlled with simple macroscopic tools. Such multilayer helical assemblies of linearly oriented nanowires and nanorods display very high circular dichroism up to 13 000 mdeg and giant dissymmetry factors up to g ≈ 0.30 over the entire visible and near-infrared range. The chiroptical properties of the chiral multilayer stack are successfully modeled using a transfer matrix formalism based on the experimentally determined properties of each individual layer. The proposed approach can be extended to much more elaborate architectures and gives access to template-free and enantiomerically pure nanocomposites whose structure can be finely tuned through simple design principles.

Published
2021

7. Monitoring the aspect ratio distribution of colloidal gold nanoparticles under pulsed-laser exposure

Author

Yehia, Mansour, Yann, Battie, Aotmane En, Naciri, and Nouari, Chaoui

Abstract

We propose an advanced in situ extinction spectroscopy set up to investigate the dynamic of the fragmentation and reshaping processes of gold colloids during a ns-laser pulse exposure. The evolution of the aspect ratio distribution of gold nanorods (NRs) during the laser exposure is obtained by analyzing each spectra with the shape distributed effective medium theory. We demonstrate that the kinetics of NR shape transformation can be divided into two fluence regimes. At small fluence, the kinetic is limited by the NRs orientation, while at high fluence, the fragmentation rate is only limited by the probability of NRs to be located in the irradiated volume.

Published
2020

8. Simulation of the photocatalytic removal of stearic acid discrete deposits on the surface of a non-porous titania thin film

Author

Yann Battie, Fouad Araiedh, N. Chaoui, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), and Unité de Recherche Catalyse et Matériaux pour l’Environnement et les Procédés URCMEP (UR11ES85), Faculté des Sciences de Gabès/Université de Gabès, Campus Universitaire Cité Erriadh, Gabès 6072, Tunisia

Subjects
Titania, Materials science, General Chemical Engineering, Analytical chemistry, Infrared spectroscopy, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Industrial and Manufacturing Engineering, Microscopic scale, law.invention, chemistry.chemical_compound, Optical microscope, law, Environmental Chemistry, Thin film, Photocatalysis, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, Porosity, General Chemistry, Kinetic model, 021001 nanoscience & nanotechnology, Microstructure, 0104 chemical sciences, chemistry, Stearic acid, 0210 nano-technology, Self-cleaning
Abstract

International audience; We apply a kinetic model to simulate the photocatalytic removal of stearic acid (SA) discrete deposits. At the microscopic scale, the SA deposit is modelled as a set of hundreds of squared islands deposited on the TiO2 surface and separated from each other. The input data include the projected areas and heights of the islands both characterized by a Gaussian distribution law with a mean value and various standard deviations. The effects of these parameters are examined, analyzed and put in relation with experimental results from the literature. The dependence of the removal kinetics of the SA deposits on its initial microstructure is clearly demonstrated. Additionally, we show that the removal kinetics of the SA deposit as measured by infrared spectroscopy can be satisfactory predicted from the distributions of the initial projected areas of the islands and their heights as measured by optical microscopy and atomic force microscopy.

Published
2020

9. Creating Regular Matrices of Aligned Silica Nanohelices: Theory and Realization

Author

Glenna L. Drisko, Julien Hunel, Emilie Pouget, David Gonzalez-Rodriguez, Sanaa Semlali, David Montero, Yann Battie, Jie Gao, Reiko Oda, Chimie et Biologie des Membranes et des Nanoobjets (CBMN), École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut de Chimie du CNRS (INC)-Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences Moléculaires (ISM), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut des matériaux de Paris-Centre (IMPC), Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), and Université de Lorraine (UL)

Subjects
Convective flow, Materials science, Dip-coating, General Chemical Engineering, Evaporation-induced self-assembly, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Capillarity theory, Physics::Fluid Dynamics, Materials Chemistry, Anisotropy, Nanoscopic scale, Physics::Atmospheric and Oceanic Physics, [PHYS]Physics [physics], Quantitative Biology::Biomolecules, Helix, Silica, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Chemical physics, 0210 nano-technology, Realization (systems), Elongated nano-object
Abstract

International audience; Here, we exercise nanoscale control over the assembly of highly anisotropic silica helices using convective flow by using the physical properties occurring during evaporation-induced self-assembly. Organizing and patterning such chiral elongated objects over large surfaces in a controllable and reproducible fashion are challenging but desirable to optimize the performance of biomimetic structures, nanosensors (mechanical properties of helices), or optical materials (chiral objects have asymmetric interactions with light as absorption is different for left- and right-handed polarization). The coupling of evaporation forces and physicochemical solution properties induce specific helix alignment, and the stick–slip phenomenon produces a periodical deposition of bands with controllable and regular spacing. Helix orientation, packing density, and spacing can then be tuned. We observe the effect of polymer additives, silica helix concentration, and substrate withdrawal speed on the quality and orientation of the helix deposition. Theoretical modeling based on capillary hydrodynamics is developed to describe the relationship between evaporative conditions and pitch distance, the band width of the stick region, and the helix orientation.

Published
2020

10. Optically Active Perovskite CsPbBr 3 Nanocrystals Helically Arranged on Inorganic Silica Nanohelices

Author

Brice Kauffmann, Yutaka Okazaki, Shaheen Pathan, Reiko Oda, Peter Müller-Buschbaum, Yann Battie, Emilie Pouget, Peizhao Liu, Wei Chen, Marion Decossas, Takashi Sagawa, Lysiane Brocard, Chimie et Biologie des Membranes et des Nanoobjets (CBMN), and École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut de Chimie du CNRS (INC)-Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Circular dichroism, Materials science, Mechanical Engineering, Bioengineering, 02 engineering and technology, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, Optically active, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Photochemistry, 3. Good health, Nanocrystal, General Materials Science, 0210 nano-technology, Luminescence, Absorption (electromagnetic radiation), ComputingMilieux_MISCELLANEOUS, Perovskite (structure)
Abstract

Perovskite nanocrystals (PNCs) exhibit excellent absorption and luminescent properties. Inorganic silica right (or left) handed nanohelices are used as chiral templates to induce optically active p...

Published
2020

11. Tuning the Chiroptical Properties of Elongated Nano-objects via Hierarchical Organization

Author

Alain Carvalho, Vincent Lemaire, Wenbing Wu, Thierry Buffeteau, Reiko Oda, Jie Gao, Emilie Pouget, Sylvain Nlate, Matthias Pauly, Yann Battie, Chimie et Biologie des Membranes et des Nanoobjets (CBMN), Université de Bordeaux (UB)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Sadron (ICS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences Moléculaires (ISM), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1 (UB)-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Buffeteau, Thierry, École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut de Chimie du CNRS (INC)-Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Centre National de la Recherche Scientifique (CNRS), Univ Bordeaux, CNRS UMR 5248, Inst Chim & Biol Membranes & Nanoobjets, INP Bordeaux, Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux (Bordeaux INP)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace, Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Strasbourg (UNISTRA)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Strasbourg (UNISTRA), and Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Thin films, Aucun, General Physics and Astronomy, Nanoparticle, Physics::Optics, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Nano, General Materials Science, Mueller calculus, Thin film, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], Chirality, ComputingMilieux_MISCELLANEOUS, Plasmonic nanoparticles, [CHIM.MATE] Chemical Sciences/Material chemistry, Optical properties, business.industry, General Engineering, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Template, Colloidal gold, Nanoparticles, Photonics, 0210 nano-technology, business, Layers
Abstract

International audience; Chiral materials appear as excellent candidates to control and manipulate the polarization of light in optical devices. In nano-photonics, the self-assembly of colloidal plasmonic nanoparticles gives rise to strong resonances in the visible range and, when such organizations are chiral, strong chiroplasmonic effect can be observed. In the present work, we describe the optical properties of chiral artificial nano-photonic materials, Goldhelices, which are hierarchically organized by Grazing Incidence Spraying. These Goldhelices are made by plasmonic nanoparticles (gold) grafted onto helical templates made from silica nanohelices. A comparison of oriented vs non-oriented surfaces has been performed by Mueller matrix polarimetry, showing the importance of the organization of the Goldhelices regarding their interaction with light. Moreover, mono-vs multi-layers photonic films are created and the measured optical properties are discussed and compared to simulations.

Published
2020

12. Ellipsometry of Colloidal Solutions: New Experimental Setup and Application to Metallic Colloids

Author

Suzanna Akil, Yann Battie, N. Chaoui, Laurent Broch, Aotmane En Naciri, M. Stchakovsky, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), HORIBA France SAS [Longjumeau], and HORIBA Scientific [France]

Subjects
[PHYS]Physics [physics], Detection limit, Materials science, technology, industry, and agriculture, Analytical chemistry, Nanoparticle, 02 engineering and technology, Surfaces and Interfaces, Electron, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, 0104 chemical sciences, Colloid, Ellipsometry, Volume fraction, Electrochemistry, General Materials Science, 0210 nano-technology, Refractive index, ComputingMilieux_MISCELLANEOUS, Spectroscopy, Plasmon
Abstract

An ellipsometric cell is developed to simultaneously determine the shape distribution, the volume fraction, and the complex refractive index of gold and silver colloids. Simulation reveals that this cell drastically improves the detection limit of ellipsometry. Indeed, Ag and Au nanoparticles (NPs) are detected at the ppmv level. We demonstrate that the NPs shape distribution can be estimated from ellipsometric measurements by analyzing them with a shape distributed effective medium theory (SDEMT). The obtained distributions from ellipsometry are in agreement with those deduced from transmission electron microcopy (TEM). Contrary to TEM, ellipsometry probes a large number of NPs estimated at about 1011 NPs. Finally, we show that the complex refractive index of colloids as determined from ellipsometry is sensitive to the optical properties of the solvent and the plasmonic properties of NPs.

Published
2017

13. Local Structure-Driven Localized Surface Plasmon Absorption and Enhanced Photoluminescence in ZnO-Au Thin Films

Author

Frank Mücklich, Jaafar Ghanbaja, Yann Battie, William Chamorro, David Horwat, Aotmane En Naciri, Flavio Soldera, Institut Jean Lamour (IJL), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Department Materials Science and Engineering [Saarbrücken], Saarland University [Saarbrücken], Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), and Université de Lorraine (UL)

Subjects
[PHYS]Physics [physics], Materials science, Photoluminescence, Nanocomposite, Annealing (metallurgy), Nanoparticle, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, General Energy, Chemical engineering, Colloidal gold, Physical and Theoretical Chemistry, Thin film, Surface plasmon resonance, 0210 nano-technology, Localized surface plasmon
Abstract

International audience; Nanocomposite films consisting of gold nanoparticles embedded in zinc oxide (ZnO-Au) have been synthesized with different gold loadings by reactive magnetron sputtering at near-room temperature followed by ex situ annealing in air up to 300 °C. Using X-ray diffraction and high resolution transmission microscopy it is shown that during deposition gold substitutes zinc in ZnO as isolated atoms and in nanoparticles still exhibiting the structure of ZnO. Both situations degrade the crystalline quality of the ZnO matrix, but thermal annealing cures it from isolated gold atoms and triggers the formation of gold nanoparticles of size higher than 3 nm, sufficient to observe a strong activation of localized surface plasmon resonance (LSPR). The amplitude of LSPR absorption observed after annealing increases with the gold loading and annealing temperature. Moreover, UV and visible photoluminescence from the ZnO matrix is strongly enhanced upon activation of LSPR showing strong coupling with the gold nanoparticles. Finally, modeling of spectroscopic ellipsometry measurements unambiguously reveals how curing the defects increases the optical bandgap of the ZnO matrix and modifies the optical dielectric functions of the nanocomposite and ZnO matrix.

Published
2016

14. Synthesis and study of γ-Fe 2 O 3 and CoFe 2 O 4 based ferrofluids by means of spectroscopic Mueller matrix ellipsometry

Author

Damien Jamon, Enric Garcia-Caurel, M. Stchakovsky, Yann Battie, Sophie Neveu, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), HORIBA France SAS [Longjumeau], HORIBA Scientific [France], PHysicochimie des Electrolytes et Nanosystèmes InterfaciauX (PHENIX), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Hubert Curien [Saint Etienne] (LHC), Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Laboratoire de physique des interfaces et des couches minces [Palaiseau] (LPICM), and École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Ferrofluid, Materials science, Nanoparticle, Maghemite, 02 engineering and technology, engineering.material, 01 natural sciences, 010309 optics, Ferrimagnetism, 0103 physical sciences, Materials Chemistry, Mueller calculus, Electrical and Electronic Engineering, Anisotropy, Instrumentation, ComputingMilieux_MISCELLANEOUS, [PHYS]Physics [physics], Condensed matter physics, Process Chemistry and Technology, 021001 nanoscience & nanotechnology, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Ferromagnetism, Effective medium approximations, engineering, 0210 nano-technology
Abstract

Ferrofluids are colloidal suspensions generally composed of ferromagnetic or ferrimagnetic nanoparticles (NPs). In the present study, the authors have focused on the ellipsometric characterization of two types of ferrofluids: one constituting maghemite (γ-Fe2O3) NPs and the other cobalt ferrite (CoFe2O4) NPs. The optical properties of the NPs are extracted from the ellipsometric spectra by using the Maxwell–Garnett effective medium approximations. As expected, Mueller matrix measurements reveal that the ferrofluid becomes anisotropic under the influence of a magnetic field. The authors correlate this anisotropy to the preferential orientation of NPs along the magnetic field.Ferrofluids are colloidal suspensions generally composed of ferromagnetic or ferrimagnetic nanoparticles (NPs). In the present study, the authors have focused on the ellipsometric characterization of two types of ferrofluids: one constituting maghemite (γ-Fe2O3) NPs and the other cobalt ferrite (CoFe2O4) NPs. The optical properties of the NPs are extracted from the ellipsometric spectra by using the Maxwell–Garnett effective medium approximations. As expected, Mueller matrix measurements reveal that the ferrofluid becomes anisotropic under the influence of a magnetic field. The authors correlate this anisotropy to the preferential orientation of NPs along the magnetic field.

Published
2019

15. Semi-Transparent p-Cu2O/n-ZnO Nanoscale-Film Heterojunctions for Photodetection and Photovoltaic Applications

Author

Jean-François Pierson, Claudia de Melo, Federica Rigoni, Aotmane En Naciri, Alberto Vomiero, Jaafar Ghanbaja, David Horwat, François Montaigne, Yann Battie, Maud Jullien, Nils Almqvist, Sylvie Migot, and Frank Mücklich

Subjects
transparent electronics, Copper oxide, Materials science, heterojunction, Settore ING-IND/22 - Scienza e Tecnologia dei Materiali, Photodetector, 02 engineering and technology, Photodetection, 010402 general chemistry, 01 natural sciences, 7. Clean energy, Atomic layer deposition, chemistry.chemical_compound, Sputtering, General Materials Science, Nanoscopic scale, business.industry, Heterojunction, local epitaxy, 021001 nanoscience & nanotechnology, copper oxide, 0104 chemical sciences, atomic layer deposition, photodetectors, Experimental physics, chemistry, Optoelectronics, 0210 nano-technology, business
Abstract

Transparent nanoscale-film heterojunctions based on Cu2O and ZnO were fabricated by atomic layer deposition and reactive magnetron sputtering. The constitutive layers exhibit high crystalline quali...

Published
2019

16. Artificial neural network for the classification of nanoparticles shape distributions

Author

Yann Battie, Yehia Mansour, N. Chaoui, A. En Naciri, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), and Université de Lorraine (UL)

Subjects
Materials science, Artificial neural network, Absorption spectroscopy, [PHYS.PHYS]Physics [physics]/Physics [physics], business.industry, Posterior probability, Computer Science::Neural and Evolutionary Computation, Nanoparticle, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, 010309 optics, Optics, Distribution (mathematics), Dynamic light scattering, Robustness (computer science), Colloidal gold, 0103 physical sciences, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], 0210 nano-technology, business, Biological system
Abstract

International audience; A new methodology, to the best of our knowledge, is developed to determine the shape distribution profile of gold nanoparticles (NPs) from optical spectroscopic measurements. Indeed, an artificial neural network (ANN) approach was introduced to classify Au NP shape distributions from their normalized absorption spectra. This ANN quantitatively analyzes the absorption spectra and provides the posterior probability to have a bimodal or unimodal shape distribution. Several colloidal suspensions were considered to investigate the robustness of the ANN approach. The comparison between ANN classification and TEM analysis was also given and discussed. We demonstrate that ANN classification is a suitable tool to inspect rapidly Au colloidal suspensions after their synthesis.

Published
2019

17. Gold Nanoparticle Chains: Synthesis, Characterization, and Modeling Using Spectroscopic Ellipsometry

Author

Aotmane En Naciri, Emilie Pouget, Julien Vieaud, Reiko Oda, Yann Battie, Katsuhiko Ariga, M. Stchakovsky, Jérémy Cane, Jie Gao, Chimie et Biologie des Membranes et des Nanoobjets (CBMN), École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut de Chimie du CNRS (INC)-Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), HORIBA France SAS [Longjumeau], HORIBA Scientific [France], Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), International Center for Materials Nanoarchitectonics (MANA), and National Institute for Materials Science (NIMS)

Subjects
Materials science, Physics::Optics, Nanoparticle, [CHIM.MATE]Chemical Sciences/Material chemistry, 02 engineering and technology, Molar absorptivity, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Condensed Matter::Soft Condensed Matter, Solvent, Dipole, Colloid, General Energy, Chemical physics, Transmission electron microscopy, Ellipsometry, [CHIM]Chemical Sciences, Physical and Theoretical Chemistry, 0210 nano-technology, ComputingMilieux_MISCELLANEOUS, Plasmon
Abstract

In this paper, we explore the ability of ellipsometry to characterize colloidal suspensions composed of gold nanoparticle (NP) chains. The complex effective index of these suspensions is deduced from ellipsometric measurement by using a wavelength-by-wavelength inversion without any dispersion law. We show that the effective refractive index of these colloids is defined by the nature of the solvent, whereas their effective extinction coefficient is mainly sensitive to the plasmonic properties of NP chains. The influence of the NP radius distribution and arrangement on the effective extinction coefficient of NP chain are investigated through simulations based on the coupled point dipole method (CDM). We clearly show that this coefficient is mainly sensitive to the interparticle distance and the number of NPs in the longest segment of chains. We demonstrate that the distribution of the number of NPs in the longest segment of chains and their volume fractions can be directly deduced from the ellipsometry by ...

Published
2018

18. Tunable Localized Surface Plasmon Resonance and Broadband Visible Photoresponse of Cu Nanoparticles/ZnO Surfaces

Author

Claudia de Melo, Frank Mücklich, Sylvie Migot, Alberto Vomiero, Jaafar Ghanbaja, Maud Jullien, Yann Battie, Aotmane En Naciri, Nils Almqvist, Jean-François Pierson, François Montaigne, David Horwat, Federica Rigoni, Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Saarland University [Saarbrücken], Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Luleå University of Technology (LUT), IMPACT N4S, and ANR-15-IDEX-0004,LUE,Isite LUE(2015)

Subjects
Materials science, Settore ING-IND/22 - Scienza e Tecnologia dei Materiali, Photodetector, 02 engineering and technology, Island growth, 010402 general chemistry, 7. Clean energy, 01 natural sciences, atomic layer deposition, copper nanoparticles, hot electrons, localized surface plasmon resonance, photodetectors, Atomic layer deposition, Broadband, General Materials Science, Surface plasmon resonance, Plasmon, Cu nanoparticles, [PHYS]Physics [physics], business.industry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Experimental physics, Optoelectronics, 0210 nano-technology, business
Abstract

International audience; Plasmonic Cu nanoparticles (NP) were successfully deposited on ZnO substrates by atomic layer deposition (ALD) owing to the Volmer–Weber island growth mode. An evolution from Cu NP to continuous Cu films was observed with an increasing number of ALD cycles. Real and imaginary parts of the NP dielectric functions, determined by spectroscopic ellipsometry using an effective medium approach, evidence a localized surface plasmon resonance that can be tuned between the visible and near-infrared ranges by controlling the interparticle spacing and size of the NP. The resulting Cu NP/ZnO device shows an enhanced photoresponse under white light illumination with good responsivity values, fast response times, and stability under dark/light cycles. The significant photocurrent detected for this device is related to the hot-electron generation at the NP surface and injection into the conduction band of ZnO. The possibility of tuning the plasmon resonance together with the photoresponsivity of the device is promising in many applications related to photodetection, photonics, and photovoltaics.

Published
2018

19. GoldHelix: Gold Nanoparticles Forming 3D Helical Superstructures with Controlled Morphology and Strong Chiroptical Property

Author

Jie Gao, Guillaume Le Saux, P. Barois, Virginie Ponsinet, Ovidiu Ersen, Jiaji Cheng, Thierry Buffeteau, Reiko Oda, Yann Battie, Marie-Hélène Delville, Emilie Pouget, Chimie et Biologie des Membranes et des Nanoobjets (CBMN), Université de Bordeaux (UB)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut des Sciences Moléculaires (ISM), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Centre de Recherche Paul Pascal (CRPP), Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB), Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), CNRS and CEA METSA (Microscopie Electronique et Sonde Atomique) network (FR3507)., ANR-10-IDEX-0003,IDEX BORDEAUX,Initiative d'excellence de l'Université de Bordeaux(2010), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1 (UB)-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Teulet, Nadine, Initiative d'excellence de l'Université de Bordeaux - - IDEX BORDEAUX2010 - ANR-10-IDEX-0003 - IDEX - VALID, École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut de Chimie du CNRS (INC)-Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Université Sciences et Technologies - Bordeaux 1-Université Montesquieu - Bordeaux 4-Institut de Chimie du CNRS (INC)

Subjects
Circular dichroism, Chiral nanostructures, Materials science, Morphology (linguistics), General Physics and Astronomy, Nanotechnology, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Circular dichroism of plasmon, Nanomaterials, Gold nanoparticles, [PHYS.PHYS] Physics [physics]/Physics [physics], General Materials Science, Surface plasmon resonance, Spectroscopy, Plasmonic nanoparticles, Nanoscopic scale, [CHIM.MATE] Chemical Sciences/Material chemistry, [PHYS.PHYS]Physics [physics]/Physics [physics], General Engineering, Silica, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Chiroptical properties, Colloidal gold, 0210 nano-technology
Abstract

International audience; Plasmonic nanoparticles, particularly gold nanoparticles (GNPs) hold a great potential as structural and functional building blocks for three-dimensional (3D) nanoarchitectures with specific optical applications. However, a rational control of their assembly into nanoscale superstructures with defined positioning and overall arrangement still remains challenging. Herein, we propose a solution to this challenge by using as building blocks: (1) nanometric silica helices with tunable handedness and sizes as a matrix and (2) GNPs with diameter varying from 4 to 10 nm to prepare a collection of helical GNPs superstructures (called Goldhelices hereafter). These nanomaterials exhibit well-defined arrangement of GNPs following the helicity of the silica template. Strong chiroptical activity is evidenced by circular dichroism (CD) spectroscopy at the wavelength of the surface plasmon resonance (SPR) of the GNPs with a anisotropy factor (g-factor) of the order of 1 × 10−4, i.e., 10-fold larger than what is typically reported in the literature. Such CD signals were simulated using a coupled dipole method which fit very well the experimental data. The measured signals are 1−2 orders of magnitude lower than the simulated signals, which is explained by the disordered GNPs grafting, the polydispersity of the GNPs, and the dimension of the nanohelices.....

Published
2017

20. An Original Method to Determine Complex Refractive Index of Liquids by Spectroscopic Ellipsometry and Illustrated Applications

Author

M. Stchakovsky, Yann Battie, A. En Naciri, Battie, Yann, HORIBA Scientific [France], Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), and HORIBA France SAS [Longjumeau]

Subjects
Microscope, General Physics and Astronomy, BSA concentration, 02 engineering and technology, 01 natural sciences, law.invention, [PHYS] Physics [physics], 010309 optics, Physics::Fluid Dynamics, Optics, law, Ellipsometry, Immersion liquid, 0103 physical sciences, Sensitivity (control systems), [PHYS]Physics [physics], Liquid, Optical properties, business.industry, Chemistry, Water, Surfaces and Interfaces, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Protein solution, Surfaces, Coatings and Films, Liquid cell, Spectroscopic ellipsometry, 0210 nano-technology, business, Phase modulation, Refractive index
Abstract

International audience; We present a method to characterize optical properties of liquids by spectroscopic ellipsometry. The experiments use a specific liquid cell that avoids disturbance of waves at air-liquid interface and allows the determination of the real and the imaginary part of the refractive index, with a sensitivity of the latter below 10−4. The method is illustrated by results obtained with a spectroscopic phase modulation ellipsometer on several liquids such as deionised water, microscope oil and protein solution. Comparisons of the method with standard techniques are given.

Published
2017

21. Plasmonic and metallic optical properties of Au/SiO 2 metal-insulator films

Author

Michel Vergnat, Yann Battie, Aotmane En Naciri, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), IMPACT N4S, ANR-15-IDEX-0004,LUE,Isite LUE(2015), and Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)

Subjects
010302 applied physics, Nanostructure, Materials science, Condensed matter physics, General Physics and Astronomy, Nanoparticle, Physics::Optics, Percolation threshold, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Condensed Matter::Materials Science, Ellipsometry, Percolation, 0103 physical sciences, Volume fraction, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Thin film, 0210 nano-technology, Plasmon
Abstract

In this paper, the optical properties and the growth mechanism of Au/SiO2 metal-insulator films (MIFs) are investigated by combining ellipsometry and transmission electron microscopy. The ellipsometric measurements, analyzed by using effective medium theories, show that the growth mechanism involves a Volmer-Weber growth mode while the morphology and the optical properties of Au/SiO2 MIFs are directly related to the percolation of the Au nanostructures. Indeed, below the percolation threshold of Au, the MIFs consist of ellipsoidal Au inclusions embedded in a SiO2 matrix. These insulating films present anisotropic plasmonic properties, attributed to the asymmetric interactions between nanaoparticles (NPs), which can be modeled according to the interacted shape distributed nanoparticle effective medium theory. At the percolation threshold of Au, an insulator-to-metal transition is observed. The MIFs simultaneously exhibit plasmonic and metallic optical properties, which can be described by the Bruggeman theory. The density of free electrons increases and the MIFs become more and more conductive as the Au volume fraction increases. We also demonstrate that for a high Au volume fraction, Bruggeman and Maxwell Garnett theories converge toward the same results, suggesting that the film is composed of isolated SiO2 inclusion embedded in a gold matrix.In this paper, the optical properties and the growth mechanism of Au/SiO2 metal-insulator films (MIFs) are investigated by combining ellipsometry and transmission electron microscopy. The ellipsometric measurements, analyzed by using effective medium theories, show that the growth mechanism involves a Volmer-Weber growth mode while the morphology and the optical properties of Au/SiO2 MIFs are directly related to the percolation of the Au nanostructures. Indeed, below the percolation threshold of Au, the MIFs consist of ellipsoidal Au inclusions embedded in a SiO2 matrix. These insulating films present anisotropic plasmonic properties, attributed to the asymmetric interactions between nanaoparticles (NPs), which can be modeled according to the interacted shape distributed nanoparticle effective medium theory. At the percolation threshold of Au, an insulator-to-metal transition is observed. The MIFs simultaneously exhibit plasmonic and metallic optical properties, which can be described by the Bruggeman the...

Published
2017

22. Plasmonic properties of implanted Ag nanoparticles in SiO2 thin layer by spectroscopic ellipsometry

Author

Daniel Mathiot, Marzia Carrada, Yann Le Gall, Dominique Muller, Yann Battie, Aotmane En Naciri, N. Chaoui, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Nano-Optique et Nanomatériaux pour l'optique (CEMES-NeO), Centre d'élaboration de matériaux et d'études structurales (CEMES), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie de Toulouse (ICT-FR 2599), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, and Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)

Subjects
Kramers–Kronig relations, Materials science, General Physics and Astronomy, Nanoparticle, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Molecular physics, 0104 chemical sciences, Ion implantation, Ellipsometry, Volume fraction, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Thin film, Surface plasmon resonance, 0210 nano-technology, Plasmon
Abstract

International audience; We report an uncommon study of the insertion of distributions of both volume fraction and depolarization factors in the modeling of the plasmonic properties of implanted Ag nanoparticles (Ag-NPs) in a SiO2 layer when using spectroscopic ellipsometry (SE) characterization. The Ag-NPs were embedded in the SiO2 matrix by Ag+ ion implantation at various doses of 0.5 × 1016, 1 × 1016, 2 × 1016, and 5 × 1016 ions cm−2. The formation of the Ag-NPs in a host matrix of SiO2 was controlled by transmission electron microscopy (TEM). The Ag-NPs are self-organized in the layer, and their mean radius ranges between 2 and 20 nm. The optical properties of layers were extracted by modeling the SE parameters by taking into account the depth profile concentration of Ag-NPs. The mixture of SiO2 and Ag-NP inclusions was modeled as an effective medium according to the shape distributed effective medium theory (SDEMT). In addition to the optical responses, it is shown that this model enables the explanation of the impact of NP shape distribution on the plasmon band and provides precious information about the NP shape characteristics. A good agreement was obtained between ellipsometry and TEM results. The distribution of the volume fraction in the film was found to lead to a gradient of effective dielectric function which was determined by the SDEMT model. The effective dielectric function reveals distinct Ag plasmon resonance varying as the Ag+ ions dose is varied. The real part of the dielectric function shows a significant variation around the plasmon resonance in accordance with the Kramers-Kronig equations. All determined optical parameters by SDEMT are provided and discussed. We highlight that SE combined with SDEMT calculations can be considered as a reliable tool for the determination of the NP shape and volume fraction distributions without the need of TEM.

Published
2017

23. Roadmap of ellipsometric characterization of plasmonic nanoparticles

Author

Aotmane En Naciri, Yann Battie, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), and Université de Lorraine (UL)

Subjects
[PHYS]Physics [physics], 010302 applied physics, Plasmonic nanoparticles, Materials science, Process Chemistry and Technology, Nanotechnology, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Characterization (materials science), Highly sensitive, Colloid, Transmission electron microscopy, Ellipsometry, Colloidal gold, 0103 physical sciences, Materials Chemistry, Electrical and Electronic Engineering, Surface plasmon resonance, 0210 nano-technology, Instrumentation, ComputingMilieux_MISCELLANEOUS
Abstract

This paper reports recent advances in ellipsometric characterization of silver and gold nanoparticles (NPs). Three systems are investigated: films composed of Au NPs distributed in shape, films with a gradient of concentration of Ag NPs, and colloidal suspensions composed of Au NP chains. The authors show that ellipsometry is highly sensitive to the plasmon resonance of NPs. This later can be used as an efficient probe of the NP morphology. The ellipsometric results are systematically compared to those that are obtained by transmission electron microscopy. The authors demonstrate that quantitative insights such as the shape distribution, the concentration, and the organization of NPs can be extracted from ellipsometric spectra.This paper reports recent advances in ellipsometric characterization of silver and gold nanoparticles (NPs). Three systems are investigated: films composed of Au NPs distributed in shape, films with a gradient of concentration of Ag NPs, and colloidal suspensions composed of Au NP chains. The authors show that ellipsometry is highly sensitive to the plasmon resonance of NPs. This later can be used as an efficient probe of the NP morphology. The ellipsometric results are systematically compared to those that are obtained by transmission electron microscopy. The authors demonstrate that quantitative insights such as the shape distribution, the concentration, and the organization of NPs can be extracted from ellipsometric spectra.

Published
2019

24. Wavelength-scale light concentrator made by direct 3D laser writing of polymer metamaterials

Author

Aurélien Bruyant, A. En Naciri, Lilian Joly, Johnny Moughames, Stefan Enoch, Safi Jradi, T. M. Chan, Sébastien Guenneau, Julien Cousin, Suzanna Akil, Z.G. Herro, Yann Battie, Laboratoire de Nanotechnologie et d'Instrumentation Optique (LNIO), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Appliquée (LPA), Université Libanaise, Institut FRESNEL (FRESNEL), Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU), Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Groupe de spectrométrie moléculaire et atmosphérique (GSMA), Université de Reims Champagne-Ardenne (URCA)-Centre National de la Recherche Scientifique (CNRS), and Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Multidisciplinary, Materials science, Fresnel zone, business.industry, Metamaterial, 02 engineering and technology, 021001 nanoscience & nanotechnology, Laser, Concentrator, 01 natural sciences, Article, law.invention, 010309 optics, Wavelength, Optics, [CHIM.POLY]Chemical Sciences/Polymers, law, 0103 physical sciences, [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, Infrared detector, 0210 nano-technology, Absorption (electromagnetic radiation), business, Lithography
Abstract

We report on the realization of functional infrared light concentrators based on a thick layer of air-polymer metamaterial with controlled pore size gradients. The design features an optimum gradient index profile leading to light focusing in the Fresnel zone of the structures for two selected operating wavelength domains near 5.6 and 10.4 μm. The metamaterial which consists in a thick polymer containing air holes with diameters ranging from λ/20 to λ/8 is made using a 3D lithography technique based on the two-photon polymerization of a homemade photopolymer. Infrared imaging of the structures reveals a tight focusing for both structures with a maximum local intensity increase by a factor of 2.5 for a concentrator volume of 1.5 λ3, slightly limited by the residual absorption of the selected polymer. Such porous and flat metamaterial structures offer interesting perspectives to increase infrared detector performance at the pixel level for imaging or sensing applications.

Published
2016
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25. Highly-repeatable generation of very small nanoparticles by Pulsed-Laser Ablation in Liquids of a high-speed rotating target

Author

A. Koch, A. Ambari, A. En Naciri, N. Chaoui, S. Champmartin, Yann Battie, A. Resano-Garcia, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, and HESAM Université (HESAM)-HESAM Université (HESAM)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB)

Subjects
Materials science, medicine.medical_treatment, Analytical chemistry, General Physics and Astronomy, Nanoparticle, One-Step, 02 engineering and technology, 010402 general chemistry, Sciences de l'ingénieur, 01 natural sciences, law.invention, Colloid, law, Fluid dynamics, medicine, nanoparticles, hydrodynamic instability, Physical and Theoretical Chemistry, Range (particle radiation), business.industry, hydrodynamic instability, Repeatability, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Ablation, Laser, 0104 chemical sciences, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Optoelectronics, nanoparticles, 0210 nano-technology, business
Abstract

International audience; By irradiating a cylindrical silver target rotated at a high-speed within the range 300–2400 rpm (lateral speed 0.16–1.25 m/s) in pure water, we prepare ligand-free Ag nanoparticles (NPs) with a size of 4 ± 2 nm which are likely to be primary particles. Usually, the generation of NPs showing such a small size requires either a laser post-treatment and/or chemical additives. As the rotation rate of the target is increased, calculated 3D flow patterns revealed different hydrodynamic regimes which clearly influence the ablation rate and repeatability of the process as well as the colloidal properties. In addition to revealing the importance of fluid dynamics in pulsed-laser ablations in liquids, this study provides a way for producing in one step pure NPs with sizes below 5 nm which are suitable for applications in catalysis.

Published
2016

26. Evaluation of sorted semi-conducting carbon nanotube films for gas sensing applications

Author

Yannick Coffinier, Philippe Thobois, Annick Loiseau, O. Ducloux, and Yann Battie

Subjects
Materials science, Contact resistance, General Engineering, Energy Engineering and Power Technology, Nanotechnology, Carbon nanotube, law.invention, Characterization (materials science), chemistry.chemical_compound, Membrane, chemistry, Chemical engineering, law, Electrical resistivity and conductivity, Electrode, Nitrocellulose, Filtration
Abstract

This work focuses on the elaboration of sorted semi-conducting single walled carbon nanotube films (SC-SWCNT films), and the evaluation of a gas microsensor based on these films. First, we show that semi-conducting carbon nanotubes could be sorted from solutions containing both metallic and semi-conducting nanotubes by ultracentrifugation in a density gradient. SC-SWCNT films were then obtained by filtration through a nitrocellulose membrane, then transferred on TLM (transmission line method) electrodes to separately measure the resistivity and the contact resistance. We finally show characterization results obtained using NO2 and NH3 as a target gas.

Published
2010

27. Experimental and theoretical determination of the plasmonic responses and shape distribution of colloidal metallic nanoparticles

Author

A. Resano-Garcia, A. En Naciri, Yann Battie, Suzanna Akil, N. Chaoui, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), and Université de Lorraine (UL)

Subjects
Materials science, Absorption spectroscopy, Analytical chemistry, General Physics and Astronomy, Nanoparticle, Physics::Optics, 02 engineering and technology, Growth, 010402 general chemistry, 01 natural sciences, Molecular physics, Resonance, Silver nanoparticle, Optical-properties, Gold nanoparticles, Physical and Theoretical Chemistry, Dependence, Plasmon, Composites, Colors, Thin-films, Depolarization, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Colloidal gold, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Nanorod, Nanorods, Particle size, Silver nanoparticles, 0210 nano-technology
Abstract

International audience; The optical properties of gold and silver nanoparticles (NPs) dispersed in water and distributed in shape are investigated by introducing a shape distributed effective medium theory (SDEMT). This model takes into account the variation of depolarization parameter induced by a NP shape distribution. Simulations show that the shape distribution induces an inhomogeneous broadening and a decrease of the amplitude of the plasmon band. The number of plasmon bands and their positions depend on both the mean value of depolarization parameter and the NP material. By fitting the measured absorption spectra with the SDEMT, we unambiguously demonstrate that the depolarization parameter distribution, i.e., the shape distribution of nanoparticles can be deduced from absorption spectra.

Published
2015

28. Diameter dependence of the optoelectronic properties of single walled carbon nanotubes determined by ellipsometry

Author

M. Guézo, A. En Naciri, Annick Loiseau, Jean-Sébastien Lauret, Laurent Broch, Yann Battie, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Laboratoire Aimé Cotton (LAC), École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Fonctions Optiques pour les Technologies de l'informatiON (FOTON), Université de Rennes (UR)-Université européenne de Bretagne - European University of Brittany (UEB)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'étude des microstructures [Châtillon] (LEM - ONERA - CNRS), ONERA-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Université européenne de Bretagne - European University of Brittany (UEB)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-ONERA, and Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Centre National de la Recherche Scientifique (CNRS)-Télécom Bretagne

Subjects
Materials science, Mean free path, Nanotechnology, 02 engineering and technology, Dielectric, Carbon nanotube, Conductivity, 01 natural sciences, Molecular physics, law.invention, Condensed Matter::Materials Science, Tight binding, Ellipsometry, law, 0103 physical sciences, Physics::Atomic and Molecular Clusters, General Materials Science, 010306 general physics, [PHYS]Physics [physics], [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], General Chemistry, 021001 nanoscience & nanotechnology, Drude model, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Charge carrier, 0210 nano-technology
Abstract

International audience; We report ellipsometric measurement on single walled carbon nanotube (SWCNT) films performed in a large spectral range from 0.07eV to 4.97eV. The complex dielectric functions of SWCNTs are correlated to their diameter distribution extracted from transmission electron microscopy. Here we show that the transition energies between Van Hove singularities are directly related to the strong one dimensional confinement. In the infrared spectral range, the real part of the dielectric function becomes negative. The electronic properties of SWCNTs are extracted from ellipsometry by using a Drude model. The mobility and the mean free path of charge carriers are limited by the high number of SWCNT contacts. In accordance with tight binding simulation, the conductivity and the charge carrier concentration increase with the SWCNT diameter. Finally, we demonstrate that the S-plasmon energy depends on the charge carrier concentration. 2

Published
2015

29. Influence of the laser light absorption by the colloid on the properties of silver nanoparticles produced by laser ablation in stirred and stationary liquid

Author

A. En Naciri, A. Koch, N. Chaoui, A. Resano-Garcia, Yann Battie, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), and Université de Lorraine (UL)

Subjects
Wavelength, Analytical chemistry, Generation, General Physics and Astronomy, Nanoparticle, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Silver nanoparticle, law.invention, law, Gold nanoparticles, Absorption (electromagnetic radiation), Laser ablation, Chemistry, Attenuation, digestive, oral, and skin physiology, Water, Nanosecond, 021001 nanoscience & nanotechnology, Laser, 0104 chemical sciences, Dynamics, Size control, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 0210 nano-technology
Abstract

International audience; Silver nanoparticles were produced by nanosecond pulsed-laser ablation at 1064 nm of Ag in pure water. These experiments were performed using an alternative ablation cell design where a cylindrical shaped Ag target was horizontally irradiated, while the liquid was stirred by a stir rod coaxially arranged to the target. The repeatability of the generated colloids properties (extinction and size distribution) is assessed by statistical tools. The colloids properties prepared under stationary liquid are found to be unpredictable, while they are highly repeatable at high stirring speed. At the same time, electronic microscopy examinations of the irradiated Ag targets revealed that the width of the laser-machined grooves exponentially decays in stationary liquid and almost linearly under high stirring speed as the ablation proceeds. In the latter case, the decay rate was found to be constant from one experiment to the other, while it was not repeatable stationary liquid. We show that the decay of the groove width is due to an attenuation of the laser energy reaching the target surface due to the formation of a more or less dense NPs layer in front of the target as the ablation proceeds. Using the ablation time-dependence of the groove width, we can quantify the attenuation factor of the laser energy with exposure time. Finally, the relationship between the laser energy attenuation, stirring speed, and repeatability of the colloids properties is interpreted and discussed in terms of mass transfer.

Published
2015

30. Determination of morphological characteristics of metallic nanoparticles based on modified Maxwell-Garnett fitting of optical responses

Author

A. Resano-Garcia, N. Chaoui, Yann Battie, Suzanna Akil, A. En Naciri, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), and Université de Lorraine (UL)

Subjects
Materials science, Physics and Astronomy (miscellaneous), Absorption spectroscopy, Analytical chemistry, Nanoparticle, Physics::Optics, 02 engineering and technology, Growth, 010402 general chemistry, 01 natural sciences, Molecular physics, Scattering, Size, Microscopy, Gold nanoparticles, Surface plasmon resonance, Spectroscopy, Surface plasmon, Shape, Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing), Spectra, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Colloidal gold, Volume fraction, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Nanorods, 0210 nano-technology
Abstract

International audience; A modified effective medium theory (MEMT) is introduced to determine morphological characteristics and the volume fraction of colloidal metallic nanoparticles. By analyzing the optical absorption spectra of gold nanoparticles (NPs), this model is used to determine the distribution of prolate and oblate NPs and to demonstrate the presence of spherical NPs. In addition to interband transition, the model takes into account the longitudinal and transversal surface plasmon resonances. The results predicted by the MEMT theory were found to be in very good agreement with the shape distributions obtained by transmission electron microscopy. We found that fitting optical absorption spectra using MEMT provides a robust tool for measuring the shape and concentration of metallic NPs.

Published
2015

31. Erratum to: Optical properties of uniformly sized silicon nanocrystals within a single silicon oxide layer

Author

Hervé Rinnert, A. En Naciri, Michel Vergnat, A.-S. Keita, Yann Battie, and Patrice Miska

Subjects
Materials science, Modeling and Simulation, Nanocrystalline silicon, General Materials Science, Bioengineering, Nanotechnology, General Chemistry, Silicon nanocrystals, Condensed Matter Physics, Silicon oxide, Layer (electronics), Atomic and Molecular Physics, and Optics
Published
2014

32. Determination of the optical properties and size dispersion of Si nanoparticles within a dielectric matrix by spectroscopic ellipsometry

Author

Abdelilah Slaoui, A. En Naciri, Marzia Carrada, Yann Battie, G. Ferblantier, A.-S. Keita, F. Delachat, Max Planck Institute for Intelligent Systems [Tübingen], Max-Planck-Gesellschaft, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Institut d'Electronique du Solide et des Systèmes (InESS), Centre National de la Recherche Scientifique (CNRS), Centre d'élaboration de matériaux et d'études structurales (CEMES), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Max Planck Institute for Intelligent Systems, Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie de Toulouse (ICT-FR 2599), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), and Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Dots, Materials science, Silicon, Physics::Optics, General Physics and Astronomy, chemistry.chemical_element, Nanoparticle, 02 engineering and technology, Dielectric, Photon energy, 01 natural sciences, Molecular physics, chemistry.chemical_compound, Optics, Ellipsometry, 0103 physical sciences, Quantum confinement, 010306 general physics, business.industry, 021001 nanoscience & nanotechnology, chemistry, Silicon nitride, Silicon nanocrystals, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Particle size, 0210 nano-technology, business, Dispersion (chemistry)
Abstract

International audience; We report on a comparative study between dielectric functions of Si nanoparticles (Si-NPs) obtained from Bruggeman effective medium approximation (BEMA), Maxwell-Garnett (MG), and a modified Maxwell-Garnett (MMG) models. Unlike BEMA and MG, a size-distribution dependent dielectric function of Si-NPs is considered in the introduced MMG model. We show that the standard deviation sigma of a size distribution can be evaluated by analyzing the imaginary part of the dielectric functions of Si-NPs extracted from BEMA and MMG. In order to demonstrate this, several samples composed of Si-NPs embedded in silicon-rich silicon nitride are investigated by spectroscopic ellipsometry over the photon energy range varying between 2 and 4 eV. Assuming a lognormal size distribution of the Si nanoparticles, it is evidenced that the parameter sigma ranges between 1.15 and 1.35. The values of size dispersion deduced by this methodology are in good agreement with TEM observations.

Published
2014

33. Extended Maxwell-Garnett-Mie formulation applied to size dispersion of metallic nanoparticles embedded in host liquid matrix

Author

Y. Zhang, N. Chaoui, A. En Naciri, A. Resano-Garcia, Yann Battie, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Institut Parisien de Chimie Moléculaire (IPCM), Institut de Chimie du CNRS (INC)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Absorption spectroscopy, General Physics and Astronomy, Nanoparticle, Physics::Optics, 02 engineering and technology, Dielectric functions, Environment, 010402 general chemistry, 01 natural sciences, Silver nanoparticle, Colloid, Optics, Optical-properties, Dispersion (optics), Gold nanoparticles, Physical and Theoretical Chemistry, Plasmon, Spectroscopy, Films, Condensed matter physics, business.industry, Shape, 021001 nanoscience & nanotechnology, 0104 chemical sciences, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Colloidal gold, Attenuation coefficient, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Silver nanoparticles, 0210 nano-technology, business
Abstract

International audience; The optical properties of metallic spherical nanoparticles embedded in host liquid matrix are studied. Extended Maxwell-Garnett-Mie formulation which accounts for size dispersion, the intrinsic confinement, and extrinsic size effect, is proposed for the calculation of the effective dielectric function and absorption coefficient of size dispersion of colloidal solution of Au and Ag nanoparticles in water. We demonstrate that the size distribution induces an inhomogeneous broadening and an increase of the amplitude of the plasmon band. A large redshift of the plasmon band is also observed for silver nanoparticles. Compared to the conventional Maxwell Garnett theory, we demonstrated that this model gives better description of the measured absorption spectra of colloidal gold solutions.

Published
2014

34. Photonics based on carbon nanotubes

Author

Slimane Loualiche, Baolai Liang, Annick Loiseau, Thomas Batte, Yann Battie, Maud Gicquel-Guézo, Hervé Folliot, Olivier Dehaese, Frédéric Grillot, Julie Le Pouliquen, Qingyuan Gu, Diana L. Huffaker, Fonctions Optiques pour les Technologies de l'informatiON (FOTON), Université de Rennes (UR)-Université européenne de Bretagne - European University of Brittany (UEB)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Télécom Bretagne-Centre National de la Recherche Scientifique (CNRS), Laboratoire Traitement et Communication de l'Information (LTCI), Télécom ParisTech-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Laboratoire d'étude des microstructures [Châtillon] (LEM - ONERA - CNRS), ONERA-Centre National de la Recherche Scientifique (CNRS), Electrical Engineering Department [Los Angeles], University of California [Los Angeles] (UCLA), University of California (UC)-University of California (UC), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Université européenne de Bretagne - European University of Brittany (UEB)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Centre National de la Recherche Scientifique (CNRS)-Télécom Bretagne, Centre National de la Recherche Scientifique (CNRS)-ONERA, and University of California-University of California

Subjects
Single-walled carbon nanotube (SWCNT), Materials science, Photoluminescence, Nanochemistry, Laser, Nanotechnology, 02 engineering and technology, Carbon nanotube, 01 natural sciences, 7. Clean energy, Multiple quantum well (MQW), Nanomaterials, law.invention, Condensed Matter::Materials Science, Materials Science(all), law, 0103 physical sciences, Optical networking, Photoluminescence (PL), General Materials Science, 010306 general physics, Nano Express, business.industry, Saturable absorber (SA), 021001 nanoscience & nanotechnology, Condensed Matter Physics, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, Semiconductor, Photonics, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 0210 nano-technology, business
Abstract

Among direct-bandgap semiconducting nanomaterials, single-walled carbon nanotubes (SWCNT) exhibit strong quasi-one-dimensional excitonic optical properties, which confer them a great potential for their integration in future photonics devices as an alternative solution to conventional inorganic semiconductors. In this paper, we will highlight SWCNT optical properties for passive as well as active applications in future optical networking. For passive applications, we directly compare the efficiency and power consumption of saturable absorbers (SAs) based on SWCNT with SA based on conventional multiple quantum wells. For active applications, exceptional photoluminescence properties of SWCNT, such as excellent light-emission stabilities with temperature and excitation power, hold these nanometer-scale materials as prime candidates for future active photonics devices with superior performances.

Published
2013

35. Optical properties of silver nanoparticles thermally grown in a mesostructured hybrid silica film

Author

Fernand Chassagneux, Damien Jamon, N. Toulhoat, Laurence Bois, Nathalie Moncoffre, Nathalie Destouches, Yann Battie, Laboratoire Hubert Curien [Saint Etienne] (LHC), Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Laboratoire des Multimatériaux et Interfaces (LMI), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Dispositifs et Instrumentation en Optoélecronique et Microondes – EA3523, Université Jean Monnet [Saint-Étienne] (UJM), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Materials science, business.industry, Scanning electron microscope, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Silver nanoparticle, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, Nanomaterials, [SPI.MAT]Engineering Sciences [physics]/Materials, Optics, Chemical engineering, Microscopy, X-ray crystallography, Thin film, 0210 nano-technology, business, Thermal analysis, Refractive index, ComputingMilieux_MISCELLANEOUS
Abstract

The composition, the structure and the optical properties of mesostructured hybrid silica films elaborated by sol-gel routine are studied versus the temperature of the post treatment by comparing ellipsometric measurements, atomic force microscopy and electronic microscopy characterizations, X-ray diffraction and thermal analysis. This paper shows that the refractive index variation is a combination between the structure contraction, the solvent evaporation, the silica wall condensation and the pyrolysis of the copolymer. We also investigate the optical properties of thermally grown silver nanoparticles in the mesotructured films and we demonstrate that these properties depend on the optical properties of the host matrix and on the silver concentration profile in the film.

Published
2011

36. Growth of ordered silver nanoparticles in silica film mesostructured with a triblock copolymer PEO-PPO-PEO

Author

Laurence Bois, Stephane Parola, Nathalie Moncoffre, François Bessueille, Nathalie Destouches, N. Toulhoat, Yann Battie, Fernand Chassagneux, Aziz Boukenter, Laboratoire des Multimatériaux et Interfaces (LMI), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Sciences Analytiques (SA), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Laboratoire Hubert Curien [Saint Etienne] (LHC), Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Institut d'Optique Graduate School (IOGS)-Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nanostructure, Materials science, Scanning electron microscope, Block copolymer, Nanoparticle, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Silver nanoparticle, Inorganic Chemistry, Optics, Materials Chemistry, Copolymer, Physical and Theoretical Chemistry, Thin film, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], business.industry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Rutherford backscattering spectrometry, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, Chemical engineering, Transmission electron microscopy, Ceramics and Composites, Silver nanoparticles, 0210 nano-technology, business, Silica film
Abstract

International audience; Elaboration of mesostructured silica films with a triblock copolymer polyethylene oxide–polypropylene oxide–polyethylene oxide, (PEO–PPO–PEO) and controlled growth of silver nanoparticles in the mesostructure are described. The films are characterized using UV–visible optical absorption spectroscopy, TEM, AFM, SEM, X-ray diffraction (XRD) and Rutherford backscattering spectrometry (RBS). Organized arrays of spherical silver nanoparticles with diameter between 5 and 8nm have been obtained by NaBH4 reduction. The size and the repartition of silver nanoparticles are controlled by the film mesostructure. The localization of silver nanoparticles exclusively in the upper-side part of the silica-block copolymer film is evidenced by RBS experiment. On the other hand, by using a thermal method, 40nm long silver sticks can be obtained, by diffusion and coalescence of spherical particles in the silica-block copolymer layer. In this case, migration of silver particles toward the glass substratefilm interface is shown by the RBS experiment

Published
2009

37. Chirality distribution in single walled carbon nanotube films by spectroscopic ellipsometry

Author

Annick Loiseau, Yann Battie, Damien Jamon, A. En Naciri, Jean-Sébastien Lauret, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Laboratoire Hubert Curien [Saint Etienne] (LHC), Institut d'Optique Graduate School (IOGS)-Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Photonique Quantique et Moléculaire (LPQM), École normale supérieure - Cachan (ENS Cachan)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'étude des microstructures [Châtillon] (LEM - ONERA - CNRS), and Centre National de la Recherche Scientifique (CNRS)-ONERA

Subjects
Photoluminescence, Materials science, Physics and Astronomy (miscellaneous), Physics::Optics, Nanotechnology, 02 engineering and technology, Carbon nanotube, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, law.invention, Condensed Matter::Materials Science, Tight binding, Chemical physics, Ellipsometry, law, Physics::Atomic and Molecular Clusters, Photoluminescence excitation, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], Thin film, 0210 nano-technology, Chirality (chemistry), Spectroscopy
Abstract

International audience; We report an experimental technique that determines the chirality distribution in single wall carbonnanotube (SWCNT) films. Films of CoMoCat SWCNTs and SWCNTs enriched in (6,5) chiralityare considered. Classical methods like photoluminescence spectroscopy frequently give incompletedistribution. In this way, spectroscopic ellipsometry is used to determine the dielectric function ofSWCNT film. The chirality abundance obtained by analysing the ellipsometric data with a tightbinding model is compared with that deduced from photoluminescence excitation spectroscopy.We demonstrate that ellipsometry is an efficient tool for a complete and quantitative determinationof the chirality distribution and the metallic/semiconducting ratio.

Published
2013

38. Determination of optical properties of percolated nanostructures using an optical resonator system

Author

J. Sukmanowski, A. En Naciri, F. X. Royer, Yann Battie, NBITEC e.V. Institut für biologisch-medizinische Forschung und Technologie e.V. Forschungscampus des Max-Delbrück-Centrums für Molekulare Medizin (MDC), Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), and Université de Lorraine (UL)

Subjects
Nanostructure, Materials science, genetic structures, Scanning electron microscope, Physics::Optics, General Physics and Astronomy, 02 engineering and technology, 01 natural sciences, law.invention, 010309 optics, Condensed Matter::Materials Science, Optics, law, 0103 physical sciences, Physics::Atomic and Molecular Clusters, Thin film, Surface plasmon resonance, ComputingMilieux_MISCELLANEOUS, [PHYS]Physics [physics], Atomic force microscopy, business.industry, 021001 nanoscience & nanotechnology, Reflectivity, eye diseases, Optical cavity, sense organs, 0210 nano-technology, business, Layer (electronics)
Abstract

In this work, methods are introduced to the determination of optical properties of thin silver films and nanostructures. We present an optical resonant system consisting of a mirror, a transparent layer and a thin silver film. The layer sequences and the nanostructure of the thin films are investigated by optical methods consist of reflectance measurements. The structures are analyzed by atomic force microscopy and scanning electron microscopy. The optical properties are determined by modeling the reflectance data. We have found that the growth mechanisms of the silver layer are correlated to its optical properties. It also found that temperature treatments produce isolated particles with a narrow plasmon resonance.

Published
2012

39. Product authentication based on the physical link induced by the photo-inscription of a (sub-micron) bar code

Author

Yann Boutant, Yann Battie, Laurence Bois, Thierry Fournel, and Nathalie Destouches

Subjects
History, Engineering drawing, Engineering, Authentication, business.industry, Bar (music), Manufacturing process, Product data, Signature (logic), Computer Science Applications, Education, Product (mathematics), Code (cryptography), business, Link (knot theory), Computer hardware
Abstract

A method dedicated to authentication of products submitted to a data inscription during their manufacturing process is suggested. It includes a management of the origin of the machine providing the reference product signature. The strength of the method is based on some links established by turns at the registration stage between all the elements to protect. Specific variations coming from product data photo-inscription physically induce a fundamental link between material and immaterial product components. This link is exploited via a specific signature extraction.

Published
2008

40. Silver nanoparticles growth in a mesoporous silica film templated with the F127 triblock copolymer

Author

François Bessueille, Laurence Bois, Nathalie Destouches, Aziz Boukenter, Yann Battie, Christophe Hubert, Fernand Chassagneux, Stephane Parola, Laboratoire des Multimatériaux et Interfaces (LMI), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Hubert Curien [Saint Etienne] (LHC), Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS)-Institut d'Optique Graduate School (IOGS), and Institut d'Optique Graduate School (IOGS)-Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, technology, industry, and agriculture, Analytical chemistry, Binary compound, Nanoparticle, 02 engineering and technology, Mesoporous silica, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Silver nanoparticle, 0104 chemical sciences, chemistry.chemical_compound, Mesoporous organosilica, Colloid and Surface Chemistry, Chemical engineering, chemistry, Transmission electron microscopy, Copolymer, [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph], Thin film, 0210 nano-technology
Abstract

International audience; The elaboration of mesoporous silica films supporting silver nanoparticles is described. Mesoporous silica films were infiltrated with silver salt solutions of different concentrations and chemical reduction treatment was performed in situ by NaBH4. The films have been characterized by TEM, AFM, XRD, and UV–vis spectroscopy. Homogeneous distributions of silver nanoparticles have been obtained by this method.

41. Theoretical and experimental studies of the formation of metal nanoparticle by laser ablation in a liquid medium. Modeling of optical and thermal properties of the Laser-Nanoparticle interaction

Author

Mansour, Yehia, Laboratoire de Chimie et Physique - Approche Multi-échelle des Milieux Complexes (LCP-A2MC), Université de Lorraine (UL), Université de Lorraine, Nouari Chaoui, Yann Battie (co-directeur), Aotmane En Naciri (co-directeur), and En Naciri, Aotmane

Subjects
optical properties, Propriétés thermiques, laser ablation in liquid medium, Modélisation, In-situ study, thermal properties, Propriétés optiques, modeling, Ablation laser en milieu liquide, metallic nanoparticles, Étude in-situ, Nanoparticules métalliques, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], [PHYS.COND] Physics [physics]/Condensed Matter [cond-mat]
Abstract

Noble metal nanoparticles (NPs) are the site of a surface plasmon resonance phenomenon resulting from the collective oscillation of their conduction electrons under the effect of an electromagnetic wave. In the case of gold and silver NPs, the resonant frequency is in the visible range, which gives these plasmonic NPs unique optical properties. In particular, the position and intensity of the plasmon resonance depend on their size, shape (aspect ratio) and the index of the host medium. The possible applications require pure samples and mono-dispersed distribution. The chemical synthesis of NPs allows the shape and size of NPs to be controlled. However, it requires the use of stabilizing agents, which lead to surface contamination by synthetic residues. To limit this disadvantage, the physical technique of laser ablation in a liquid medium is a promising alternative, which, however, suffers from a lack of control over the shape and size of the NPs produced. The shape and size of NPs produced by liquid laser ablation (ALML) are closely related to the three essential steps of the process: Target / laser interaction; Mass transport; Laser / NPs interaction suspended in the liquid. In order to understand the mechanisms governing each of these stages, it is necessary to study them separately. In this work, we focused on the mechanisms of interaction between the laser beam and the NPs suspended in the liquid. Depending on the energy density absorbed by the suspended NPs, they undergo fragmentation or remodeling. We then studied the mechanisms behind the phenomenon of fragmentation. The evolution of the shape distribution of NPs during NP fragmentation was studied by developing an original and quantitative technique of in-situ optical spectroscopy. And, the evolution of the volume fraction of NPs during their preparation by ALML by in-situ optical spectroscopy is obtained and analyzed. In parallel with the experimental work, we have developed theoretical models for understanding the mechanisms of formation of metallic nanoparticles by laser ablation in a liquid medium. A modest study on the modeling of optical and thermal properties of the Laser-Nanoparticle interaction is discussed in this thesis., Spécialité doctorale "Physique de la matière condensée" présentée par MANSOUR Yehia Soutenue le le 16 Décembre 2020 Études théorique et expérimentale de la formation des nanoparticules métalliques par ablation laser en milieu liquide. Modélisations des propriétés optiques et thermiques de l'interaction Laser-Nanoparticules.Les nanoparticules (NPs) de métaux nobles sont le siège d’un phénomène de résonance plasmon de surface résultant de l’oscillation collective de leurs électrons de conduction sous l’effet d’une onde électromagnétique. Dans le cas de NPs d’or et l’argent, la fréquence de résonance est située dans visible ce qui confère à ces NPs plasmoniques des propriétés optiques uniques. En particulier, la position et l’intensité de la bande de résonance plasmon peuvent varier en fonction de leur taille, leur forme (rapport d'aspect) et de l'indice du milieu hôte. Les possibilités d’applications nécessitent des échantillons purs et de distribution mono disperse. La synthèse des NPs par voie chimique permet de contrôler dans une certaine mesure la forme et la taille des NPs. Elle nécessite cependant l’utilisation d’agents stabilisants qui mènent à une contamination de surface par les résidus de synthèse. Pour limiter cet inconvénient, la technique physique d’ablation laser en milieu liquide est une alternative prometteuse qui souffre cependant d’un manque de contrôle de la forme et de la taille des NPs produites. La forme et la taille des NPs élaborées par ablation laser en milieu liquide (ALML) sont étroitement liées aux trois étapes essentielles du processus : Interaction cible/laser ; Transport de masse ; Interaction laser/NPs en suspension dans le liquide. Afin d’appréhender les mécanismes régissant chacune de ces étapes, il est nécessaire de les étudier séparément. Dans ce travail, nous nous sommes focalisés sur les mécanismes d’interaction entre le faisceau laser et les NPs en suspension dans le liquide. Suivant la densité d’énergie absorbée par les NPs en suspension, celles-ci subissent la fragmentation ou le remodelage. Par la suite nous avons étudié les mécanismes à l’origine du phénomène de la fragmentation. L’évolution de la distribution de forme des NPs lors de la fragmentation des NPs a été étudiée en développant une technique originale et quantitative de spectroscopie optique in-situ. De même, l’évolution de la fraction volumique des NPs au cours de leur élaboration par ALML par spectroscopie optique in-situ est obtenue et analysée. En parallèle aux travaux expérimentaux, nous avons développé des modèles théoriques pour la compréhension des mécanismes de formation des nanoparticules métalliques par ablation laser en un milieu liquide. Une autre étude approfondie sur la modélisation des propriétés optiques et thermiques de l'interaction Laser-Nanoparticules est discutée dans cette thèse. Un modèle thermique de Takami modifié nommé MTM (Modified Takami Model) a été également introduit. Son utilité importante a été démontrée pour l’interprétation des mécanismes de l’interaction laser-NPs.

Published
2020

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