Synthesis and Optical Properties of Cubic Gold Nanoframes

被引：133

作者：

Au, Leslie ^{[2
]}

Chen, Yeechi ^{[2
]}

Zhou, Fei ^{[3
]}

Camargo, Pedro H. C. ^{[1
]}

Lim, Byungkwon ^{[1
]}

Li, Zhi-Yuan ^{[3
]}

Ginger, David S. ^{[2
]}

Xia, Younan ^{[1
]}

机构：

[1] Washington Univ, Dept Biomed Engn, St Louis, MO 63130 USA

[2] Univ Washington, Dept Chem, Seattle, WA 98195 USA

[3] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

来源：

NANO RESEARCH | 2008年 / 1卷 / 06期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

Gold nanostructures; galvanic replacement; hollow nanostructures; localized surface plasmon resonance; surface-enhanced Raman scattering;

D O I：

10.1007/s12274-008-8046-z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper describes a facile method of preparing cubic Au nanoframes with open structures via the galvanic replacement reaction between Ag nanocubes and AuCl(2)(-). A mechanistic study of the reaction revealed that the formation of Au nanoframes relies on the diffusion of both Au and Ag atoms. The effect of the edge length and ridge thickness of the nanoframes on the localized surface plasmon resonance peak was explored by a combination of discrete dipole approximation calculations and single nanoparticle spectroscopy. With their hollow and open structures, the Au nanoframes represent a novel class of substrates for applications including surface plasmonics and surface-enhanced Raman scattering.

引用

收藏

页码：441 / 449

页数：9

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