Search

Your search keyword '"Thuau, Damien"' showing total 127 results
Start Over Author "Thuau, Damien"
127 results on '"Thuau, Damien"'

7. Fine‐Tuning the Optoelectronic and Redox Properties of an Electropolymerized Thiophene Derivative for Highly Selective OECT‐Based Zinc Detection.

Author

Nicolini, Tommaso, Shinde, Shekhar, El‐Attar, Reem, Salinas, Gerardo, Thuau, Damien, Abbas, Mamatimin, Raoux, Matthieu, Lang, Jochen, Cloutet, Eric, and Kuhn, Alexander

Subjects
ZINC, THIOPHENES, BIOELECTRONICS, OXIDATION-reduction reaction, THIN films, POLYMERS
Abstract

Organic mixed ionic‐electronic conductors (OMIEC) have emerged as pivotal materials in organic bioelectronics, particularly when integrated into organic electrochemical transistors (OECTs). Conducting polymer‐based devices have indeed demonstrated their capability to transduce biological signals into amplified output signals, harnessing the high transconductance of OECTs. The OECT operating principle and sensing capability strongly depend on ion‐conjugated backbone coupling: the dual nature of OMIECs, i.e. ion‐conductor and electron/hole‐conductor, presents an intrinsic interface in the bulk of the thin film across which transduction of ionic signals into electronic signals and vice versa occurs. Recent works have shown how selective sodium and potassium detection can be achieved by direct chemical modification of the polymer. Such modifications introduce ligands with affinity for the cations of interest as substituents on the polymer chain. The present work explores the integration of specifically modified conducting polymers into OECT channels, offering selectivity for zinc cations. Zinc fluxes are crucial in various biological processes, and their reliable detection, especially at low concentrations, is an important challenge. By electropolymerizing a thiophene‐based trimer, modified with a dipicolylamine (DPA) substituent, a conducting polymer‐based OECT is obtained that can selectively detect Zn2+ in the 10−6 to 10−3 mol L−1 concentration range in physiological buffers. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

11. Fabrication and characterisation of carbon-based devices

Author

Thuau, Damien, Cheung, Rebecca., and Koutsos, Vasileios

Subjects
621.3, thin film material, micro-electromechanical systems, MEMS, nanotechnology, carbon nanotubes, thermal conductivity measurement, CNTs, humidity sensors
Abstract

Thin film material properties and measurement characterisation techniques are crucial for the development of micro-electromechanical systems (MEMS) devices. Furthermore, as the technology scales down from microtechnology towards nanotechnology, nanoscale materials such as carbon nanotubes (CNTs) are required in electronic devices to overcome the limitations encountered by conventional materials at the nanoscale. The integration of CNTs into micro-electronics and material applications is expected to provide a wide range of new applications. The work presented in this thesis has contributed to the development of thin film material characterisation through research on the thermal conductivity measurement and the control of the residual stress of thin film materials used commonly in MEMS devices. In addition, the use of CNTs in micro-electronics and as filler reinforcement in composite materials applications have been investigated, leading to low resistivity CNTs interconnects and CNTs-Polyimide (PI) composites based resistive humidity sensors. In the first part of this thesis, the thermal conductivity of conductive thin films as well as the control of the residual stress arising from fabrication process in PI micro-cantilevers have been studied. A MEMS device has been developed for the thermal conductivity characterisation of conductive thin films showing good agreement with thermal conductivity of bulk material. Low energy Ar+ ion bombardment in a plasma has been used to control the residual stress present in PI cantilevers. Appropriate ion energy and exposure time have led to stress relaxation of the beams resulting in a straight PI cantilever beam. In the second part of this thesis, low resistivity CNTs interconnects have been developed using both dielectrophoresis (DEP) and Focused Ion Beam (FIB) techniques. An investigation of the effects of CNT concentration, applied voltage and frequency on the CNTs alignment between Al and Ti electrodes has resulted in the lowering of the CNTs’ resistance. The deposition of Pt contact using FIB at the CNTs-metal electrodes interface has been found to decrease the high contact resistances of the devices by four and two orders of magnitude for Al and Ti electrodes respectively. The last part of this thesis focuses on the preparation of CNTs-PI composite materials, its characterisation and its application as resistive humidity sensor. The integration of CNTs inside the PI matrix has resulted in enhancing significantly the electrical and mechanical properties of the composites. In particular, a DEP technique employed to induce CNTs alignment inside the PI matrix during curing has been attributed to play an important role in improving the composite properties and lowering the percolation threshold. In addition, the fabrication and testing of CNTs-PI resistive humidity sensors have been carried out. The sensing performance of the devices have shown to be dependent highly on the CNT concentration. Finally, the alignment of CNTs by DEP has improved the sensing properties of CNTs-PI humidity sensors and confirmed that the change of resistance in response to humidity is governed by the change of the CNTs’ resistances due to charge transfer from the water molecules to the CNTs.

Published
2012

14. Conjugated polymer blends for faster organic mixed conductors

Author

Barker, Micah, primary, Nicolini, Tommaso, additional, Yaman, Yasmina Al, additional, Thuau, Damien, additional, Siscan, Olga, additional, Ramachandran, Sasikumar, additional, Cloutet, Eric, additional, Brochon, Cyril, additional, Richter, Lee J., additional, Dautel, Olivier J., additional, Hadziioannou, Georges, additional, and Stingelin, Natalie, additional

Published
2023
Full Text
View/download PDF

16. Improved stability of organic electrochemical transistor performance with a low swelling mixed conducting polymer: a comparative study with PEDOT:PSS

Author

Menezes, Natalia Pereira, primary, Nicolini, Tommaso, additional, Barker, Micah, additional, Mariano, André Augusto, additional, Dartora, César Augusto, additional, Wantz, Guillaume, additional, Stingelin, Natalie, additional, Abbas, Mamatimin, additional, Dautel, Olivier J., additional, and Thuau, Damien, additional

Published
2023
Full Text
View/download PDF

21. Crosslinkable electroactive fluorinated polymers

Author

HADZIIOANNOU, Georges, CLOUTET, Eric, BROCHON, Cyril, THUAU, Damien, KALLITSIS, Konstantinos, DOMINGUES-DOS SANTOS, Fabrice, SOULESTIN, Thibaut, Team 4 LCPO : Polymer Materials for Electronic, Energy, Information and Communication Technologies, Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Laboratoire de l'intégration, du matériau au système (IMS), Université Sciences et Technologies - Bordeaux 1-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), Piezotech SAS (Piezotech SAS), Piezotech SAS, and THUAU, DAMIEN

Subjects
[SPI]Engineering Sciences [physics], [SPI] Engineering Sciences [physics], [SPI.MAT] Engineering Sciences [physics]/Materials, [SPI.MAT]Engineering Sciences [physics]/Materials
Published
2020

22. Solvent‐Driven Biomimetic Soft Sensors and Actuators.

Author

Sun, Quan, Ayela, Cédric, and Thuau, Damien

Subjects
SMART structures, BIOMIMETIC materials, ACTUATORS, PRINCIPAL components analysis, FINITE element method, DETECTORS
Abstract

The emergence of soft actuators that exhibit large, complex, programmable, and reversible shape deformation is of fundamental interest having potential applications in optics, medicals, and robotics fields. However, existing soft actuators are generally driven by only few given external stimuli such as temperature, humidity, or light which limit their interactions with their surroundings. Here, biomimetic soft actuators that respond to a variety of solvent vapors via programmable motion studied by Finite Element Modeling (FEM) are presented. A versatile micromachining process is used to fabricate these biomimetic soft actuators able to bend, curve, and twist in different manners according to their designs mimicking stamen, seed pots, and petals of Bauhinia variegate and Dendrobium orchids. The kinetic parameters of the transient response and recovery actuation are taken as the input feature in principal component analysis (PCA) to discriminate analyte molecules. Finally, to broaden the accessible 3D motions and thus functions of these smart actuators, an origami approach is employed to provide further flexibility and novel controlled structural changes in continuum structures such as snake‐like soft actuators, walkers, and grippers. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

24. PVDF-based electroactive polymers for flexible electronics

Author

Thuau, Damien, Sun, Quan, Dufour, Isabelle, Ayela, Cédric, THUAU, DAMIEN, Laboratoire de l'intégration, du matériau au système (IMS), and Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université Sciences et Technologies - Bordeaux 1

Subjects
[SPI]Engineering Sciences [physics], [SPI] Engineering Sciences [physics], [SPI.MAT] Engineering Sciences [physics]/Materials, ComputingMilieux_MISCELLANEOUS, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

International audience

Published
2020

25. Crystal-Crystal transitions in poly(VDF-ter-TrFE-ter-CTFE): Influence of CTFE termonomers

Author

BARGAIN, François, THUAU, Damien, PANINE, Pierre, HADZIIOANNOU, Georges, DOMINGUES-DOS SANTOS, Fabrice, TENCÉ-GIRAULT, Sylvie, Laboratoire Matière Molle et Chimie (MMC), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'intégration, du matériau au système (IMS), Université Sciences et Technologies - Bordeaux 1-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), European Synchrotron Radiation Facility (ESRF), Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Piezotech SAS (Piezotech SAS), Piezotech SAS, Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM), Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), TENCE-GIRAULT, Sylvie, and THUAU, DAMIEN

Subjects
[CHIM.MATE] Chemical Sciences/Material chemistry, Electro-active-polymers, [CHIM] Chemical Sciences, Polymères [Chimie], Fluorinated polymers, [CHIM]Chemical Sciences, Electroactive fluorinated copolymers, Crystalline structures, Cristallographie [Chimie], [CHIM.MATE]Chemical Sciences/Material chemistry, Electro-active polymers, ComputingMilieux_MISCELLANEOUS
Abstract

The increasing industrial interest for printed organic electronics these last years has led to the development of VDF-based electroactive polymers for numerous energy-related applications (sensors, actuators, capacitors) [1]. Depending on their CTFE content (from 0 to 10 mol %), poly (VDF-ter-TrFE-ter-CTFE), poly(vinylidene fluoride-ter-trifluoroethylene-ter-chlorotrifluoroethylene) copolymers exhibit ferroelectric (FE) or relaxor ferroelectric (RFE) properties at low temperature whereas they all present paraelectric (PE) behavior at high temperature. This thermal evolution of their electro-active properties is related to reversible crystal-crystal transitions. Using simultaneous SAXS-WAXS experiments along thermal cycles, we studied these structural transitions for three different copolymers with various amount of CTFE (0,  5 and  10 mol %). We identified two types of crystalline phase at low temperature with their proper crystal-crystal transition: the first one containing all-trans conformations (orthorhombic FE phase) presents a discontinuous transition towards the hexagonal PE phase, the second one which incorporates gauche disordered conformations (orthorhombic DFE (Defective Ferroelectric) or RFE) transits continuously towards the same hexagonal PE phase. The discontinuous FE to PE transition is the predominant transition observed in the copolymer without CTFE, it is the well-known Curie transition. The unique transition observed in the terpolymer with 10 mol % of CTFE is the continuous RFE to PE transition. For the intermediate composition, we observe the coexistence of these two simultaneous phase transitions, FE to PE and RFE to PE. These observations are well correlated with the ferroelectric and relaxor-ferroelectric behaviors of each terpolymer. All the conclusions and discussion of this study were recently published in Polymer [2]. At the epf2019 congress, we will focus on the SAXS-WAXS structural study.

Published
2019

26. Biomimetic multi-stimuli responsive flexible sensor

Author

Sun, Quan, Delsarte, Isabelle, Dufour, Isabelle, Thuau, Damien, Ayela, Cédric, and Dufour, Isabelle

Subjects
[SPI.NANO] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
Published
2021

27. A Low‐Swelling Polymeric Mixed Conductor Operating in Aqueous Electrolytes

Author

Nicolini, Tommaso, primary, Surgailis, Jokubas, additional, Savva, Achilleas, additional, Scaccabarozzi, Alberto D., additional, Nakar, Rana, additional, Thuau, Damien, additional, Wantz, Guillaume, additional, Richter, Lee J., additional, Dautel, Olivier, additional, Hadziioannou, Georges, additional, and Stingelin, Natalie, additional

Published
2020
Full Text
View/download PDF

31. Effect of additive in fullerene and non-fullerene acceptor organic solar cells

Author

Abduleziz, Ablat, Thuau, Damien, Abbas, Mamatimin, Laboratoire de l'intégration, du matériau au système (IMS), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université Sciences et Technologies - Bordeaux 1, and THUAU, DAMIEN

Subjects
[PHYS]Physics [physics], [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], [PHYS.COND] Physics [physics]/Condensed Matter [cond-mat], ComputingMilieux_MISCELLANEOUS, [PHYS] Physics [physics]
Abstract

International audience

Published
2018

32. Electrostrictive multilayer polymer actuator dimensioning and modelling for continuum snake like robot application

Author

Jacquemin, Quentin, Thuau, Damien, Monteiro, E., TENCÉ-GIRAULT, Sylvie, MECHBAL, Nazih, Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM), Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Laboratoire de l'intégration, du matériau au système (IMS), Université Sciences et Technologies - Bordeaux 1-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), and Arkema (Arkema)

Subjects
[PHYS]Physics [physics], [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019

33. A Low‐Swelling Polymeric Mixed Conductor Operating in Aqueous Electrolytes

Author

Nicolini, Tommaso, Surgailis, Jokubas, Savva, Achilleas, Scaccabarozzi, Alberto, Nakar, Rana, Thuau, Damien, Wantz, Guillaume, Richter, Lee, Dautel, Olivier, Hadziioannou, Georges, Stingelin, Natalie, Nicolini, Tommaso, Surgailis, Jokubas, Savva, Achilleas, Scaccabarozzi, Alberto, Nakar, Rana, Thuau, Damien, Wantz, Guillaume, Richter, Lee, Dautel, Olivier, Hadziioannou, Georges, and Stingelin, Natalie

Abstract

Organic mixed conductors find use in batteries, bioelectronics technologies, neuromorphic computing and sensing. While great progress has been achieved, polymer-based mixed conductors frequently experience significant volumetric changes during ion uptake/rejection, i.e., during doping/de-doping, charging/discharging. Although ion dynamics may be enhanced in expanded networks, these

Published
2020

34. ePiezoInk: Biocompatible piezoelectric inks for printed sensors

Author

Lemaire, Etienne, Khan, S, de Tournade, C., Thivillon Oliva, E., Thuau, Damien, Briand, Danick, Atli, Atilla, and THUAU, DAMIEN

Subjects
ComputingMilieux_MISCELLANEOUS, [PHYS.COND] Physics [physics]/Condensed Matter [cond-mat], [PHYS] Physics [physics]
Published
2018

35. PVDF-based electroactive polymers for flexible electronics

Author

Thuau, Damien, Dufour, Isabelle, Laboratoire de l'intégration, du matériau au système (IMS), and Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université Sciences et Technologies - Bordeaux 1

Subjects
[SPI.NANO] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019

38. Organic MEMS designed by and for organic electronics

Author

Ayela, Cédric, Thuau, Damien, Matta, Micaela, Abbas, Mamatimin, Wantz, Guillaume, Hirsch, Lionel, Muccioli, Luca, Dufour, Isabelle, Laboratoire de l'intégration, du matériau au système (IMS), Université Sciences et Technologies - Bordeaux 1-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), and Ayela, Cédric

Subjects
[SPI]Engineering Sciences [physics], [SPI] Engineering Sciences [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2018

39. Hybrid π-conjugated organosilica materials: semiconductors for fully covalent transistors or photovoltaic applications

Author

Roche, Gilles, Gorisse, Thérèse, Thuau, Damien, VALVIN, Pierre, Tjoutis, Thomas, Chambon, Sylvain, Flot, David, Moreau, Joël, Dautel, Olivier, Wantz, Guillaume, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Laboratoire de l'intégration, du matériau au système (IMS), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université Sciences et Technologies - Bordeaux 1, Laboratoire Charles Coulomb (L2C), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Agrégats Moléculaires et Matériaux Inorganiques (LAMMI), Centre National de la Recherche Scientifique (CNRS)-Université Montpellier 2 - Sciences et Techniques (UM2), Centre National de la Recherche Scientifique (CNRS), Hétérochimie moléculaire et macromoléculaire (HMM), and Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI.NRJ]Engineering Sciences [physics]/Electric power, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2017

42. Hybrid π-conjugated organosilica materials: semiconductors for the first fully covalent transistor or photovoltaic applications

Author

Roche, Gilles, Gorisse, Thérèse, Thuau, Damien, Wojciechowski, Konrad, Ramírez, Iván, VALVIN, Pierre, Clevers, Simon, Tjoutis, Thomas, Chambon, Sylvain, Riede, Moritz, Flot, David, Geerts, Yves, Moreau, Joël, Henry J., Snaith, Dautel, Olivier, Wantz, Guillaume, Wantz, Guillaume, Laboratoire de l'intégration, du matériau au système (IMS), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université Sciences et Technologies - Bordeaux 1, and Prof. H. Yan & Prof. B.Z. Tang

Subjects
[SPI.NRJ]Engineering Sciences [physics]/Electric power, [SPI.NRJ] Engineering Sciences [physics]/Electric power
Abstract

International audience; This communication will display the use of novel organosilica materials embedding π-conjugated moieties1 as semiconductors into various applications. For field effect transistors, the π-conjugated core chosen is [1]benzothieno[3,2-b][1]benzothiophene (BTBT)2, first functionalized with hydroxyl groups3 and then modified with hydrolysable and cross-linkable triethoxysilyl moieties. After polycondensation, this compound forms a hybrid material found to be a semiconductor and can be incorporated into field effect transistors. Taking advantage of the sol-gel chemistry involved here, we built Hybrid Field Effect Transistors that are fully cross-linked with covalent bonds. Molecules are cross-linked to each other, covalently bonded to the silicon oxide dielectric and also covalently bonded to the gold electrode thanks to the use of an appropriate surface modifier in between. This is the first report of fully covalent transistors. Those devices with modest mobilities show impressive resilience against polar, aliphatic and aromatics solvents (even under sonication). A solgel processable derivative of fullerene will also be described as promising interlayer for Perovskite n-i-p photovoltaic solar cells4.

Published
2017

43. MEMS Resonators Activities at the IMS

Author

Ducrot, Pierre-Henri, Thuau, Damien, Nesser, Hussein, Debéda, Hélène, Ayela, Cédric, Dufour, Isabelle, and Dufour, Isabelle

Subjects
[SPI.NANO] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, ComputingMilieux_MISCELLANEOUS
Published
2017

44. Unusual electromechanical response in rubrene single crystals

Author

Matta, Micaela, primary, Pereira, Marco José, additional, Gali, Sai Manoj, additional, Thuau, Damien, additional, Olivier, Yoann, additional, Briseno, Alejandro, additional, Dufour, Isabelle, additional, Ayela, Cedric, additional, Wantz, Guillaume, additional, and Muccioli, Luca, additional

Published
2018
Full Text
View/download PDF

45. On the electromechanical properties of organic semiconductors and OFET embedded MEMS

Author

Pereira, Marco, Thuau, Damien, Matta, M, Hirsch, Lionel, Briseno, Alejandro, Muccioli, Luca, Olivier, Y, Ayela, Cédric, Wantz, Guillaume, Dufour, Isabelle, Laboratoire de l'intégration, du matériau au système (IMS), and Université Sciences et Technologies - Bordeaux 1-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SPI.NANO] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2016

46. Giant electro-mechanical transduction in all-organic MEMS for physical and chemical sensors

Author

Thuau, Damien, Abbas, Mamatimin, Wantz, Guillaume, Chambon, Sylvain, Tardy, Pascal, Hirsch, Lionel, Dufour, Isabelle, Ayela, Cédric, Dufour, Isabelle, Laboratoire de l'intégration, du matériau au système (IMS), and Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université Sciences et Technologies - Bordeaux 1

Subjects
[SPI.NANO] Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2016

48. π-Conjugated Organosilica Semiconductors: Toward Robust Organic Electronics

Author

Roche, Gilles H, Wantz, Guillaume, Dautel, Olivier, Thuau, Damien, Valvin, PIerre, Clevers, Simon, Tjoutis, Thomas, Chambon, Sylvain, Flot, David, Geerts, Yves, Moreau, Joel J.E., Roche, Gilles H, Wantz, Guillaume, Dautel, Olivier, Thuau, Damien, Valvin, PIerre, Clevers, Simon, Tjoutis, Thomas, Chambon, Sylvain, Flot, David, Geerts, Yves, and Moreau, Joel J.E.

Abstract

The use of novel organosilica materials embedding π-conjugated moieties as semiconductor into field-effect transistors is demonstrated. The chosen π-conjugated core is a [1]benzothieno[3,2-b][1]benzothiophene that is modified with hydrolyzable and crosslinkable triethoxysilyl moieties. After polycondensation, this compound forms a hybrid material composed of charge transport pathways as well as insulating sublayers made of silicon oxide (SiOx). The hybrid material behaves as a semiconductor and is subsequently integrated as active layer into field-effect transistors. These precursors show J-type aggregation that evolves toward H-type aggregates during the sol–gel process, which improve charge transport. Taking advantage of the sol–gel chemistry involved here, hybrid field-effect transistors that are fully crosslinked with covalent bonds are built. Molecules are crosslinked to each other, covalently bonded to the silicon oxide dielectric, and also covalently bonded to the gold electrodes, thanks to the use of an appropriate additional interfacial monolayer. This is the first report of fully covalent transistors. Those devices with modest mobilities show impressive resilience against polar, aliphatic, and aromatics solvents even under sonication. This study opens the route toward a new class of hybrid materials to create highly robust electronic applications., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2017

49. The Organic Bipolar Heterojunction Transistor (OHBT)

Author

Wantz, Guillaume, Pereira, Marco, Ayela, Cédric, Fregonese, Sébastien, Briseno, Alejandro, Hirsch, Lionel, Thuau, Damien, Laboratoire de l'intégration, du matériau au système (IMS), Université Sciences et Technologies - Bordeaux 1-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), and Ayela, Cédric

Subjects
[SPI]Engineering Sciences [physics], [SPI] Engineering Sciences [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2015

Catalog

Books, media, physical & digital resources
See catalog results