Shape dependent resonance light scattering properties of gold nanorods

被引：36
|
作者：
Zhu, J [1 ]
Huang, LQ
Zhao, JW
Wang, YC
Zhao, YR
Hao, LM
Lu, YM
机构：
[1] Xian Jiaotong Univ, Sch Sci, Inst Modern Phys, Xian 710049, Peoples R China
[2] Univ Cardiff Wales, Dept Phys & Astron, Cardiff, Wales
来源：
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2005年 / 121卷 / 03期
基金：
中国国家自然科学基金;
关键词：
nanorods; surface plasmon resonance; scattering; aspect ratio; quasi-static;
D O I：
10.1016/j.mseb.2005.03.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Suspended gold nanorods with mean aspect ratio 2.5 have been synthesized via electrochemical method. Resonance scattering properties have been studied. Two scattering peaks fixed at 400 and 640 nm are due to the scattering of the gold nanorods via coupling to the transverse and longitudinal surface plasmon resonance. The quasi-static calculation results indicate that with the increasing aspect ratio of the nanorods, the longer wavelength scattering peak red shifts linearly and the shorter wavelength peak blue shifts non-linearly. When aspect ratio a/b = 1.0, ellipse degenerate to sphere and the two peaks unite into one peak at 450 nm. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：199 / 203
页数：5
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