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Hollow Au–Ag Alloy Nanorices and Their Optical Properties

Authors :
Keke Yu
Xiaonan Sun
Liang Pan
Ting Liu
Anping Liu
Guo Chen
Yingzhou Huang
Source :
Nanomaterials, Vol 7, Iss 9, p 255 (2017)
Publication Year :
2017
Publisher :
MDPI AG, 2017.

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.

Details

Language :
English
ISSN :
20794991
Volume :
7
Issue :
9
Database :
Directory of Open Access Journals
Journal :
Nanomaterials
Publication Type :
Academic Journal
Accession number :
edsdoj.7453374af49f47c98b2ed3cc9103e79a
Document Type :
article
Full Text :
https://doi.org/10.3390/nano7090255