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2 results on '"hollow nanorice"'

1. Hollow Au-Ag Alloy Nanorices and Their Optical Properties.

Author

Keke Yu, Xiaonan Sun, Liang Pan, Ting Liu, Anping Liu, Guo Chen, and Yingzhou Huang

Subjects
*NANOSTRUCTURED materials synthesis, *SILVER nanoparticles, *GOLD nanoparticle synthesis
Abstract

Hollow noble metal nanoparticles have excellent performance not only in surface catalysis but also in optics. In this work, the hollow Au-Ag alloy nanorices are fabricated by the galvanic replacement reaction. The dark-field spectrum points out that there is a big difference in the optical properties between the pure Ag nanorices and the hollow alloy nanorices that exhibit highly tunable localized surface plasmon resonances (LSPR) and that possess larger radiative damping, which is also indicated by the finite element method. Furthermore, the surface enhanced Raman scattering (SERS) and oxidation test indicate that hollow Au-Ag alloy nanorices show good anti-oxidation and have broad application prospects in surface-plasmon-related fields. [ABSTRACT FROM AUTHOR]

Published
2017
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2. Hollow Au–Ag Alloy Nanorices and Their Optical Properties

Author

Liang Pan, Yingzhou Huang, Guo Chen, Keke Yu, Ting Liu, Anping Liu, and Sun Xiaonan

Subjects
Materials science, General Chemical Engineering, Alloy, surface plasmon, Nanoparticle, Physics::Optics, 02 engineering and technology, engineering.material, 010402 general chemistry, 01 natural sciences, Article, lcsh:Chemistry, symbols.namesake, Condensed Matter::Materials Science, Optics, Radiative transfer, General Materials Science, hollow nanorice, business.industry, Surface plasmon, Surface-enhanced Raman spectroscopy, 021001 nanoscience & nanotechnology, 0104 chemical sciences, lcsh:QD1-999, engineering, symbols, Optoelectronics, Au–Ag alloy, Noble metal, surface enhanced Raman spectroscopy, 0210 nano-technology, business, Raman scattering, Localized surface plasmon
Abstract

Hollow noble metal nanoparticles have excellent performance not only in surface catalysis but also in optics. In this work, the hollow Au-Ag alloy nanorices are fabricated by the galvanic replacement reaction. The dark-field spectrum points out that there is a big difference in the optical properties between the pure Ag nanorices and the hollow alloy nanorices that exhibit highly tunable localized surface plasmon resonances (LSPR) and that possess larger radiative damping, which is also indicated by the finite element method. Furthermore, the surface enhanced Raman scattering (SERS) and oxidation test indicate that hollow Au-Ag alloy nanorices show good anti-oxidation and have broad application prospects in surface-plasmon-related fields.

Published
2017

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