Gold nanorods: Limitations on their synthesis and optical properties

被引:101
作者
Jiang, XC [1 ]
Brioude, A [1 ]
Pileni, MP [1 ]
机构
[1] Univ Paris 06, Lab LM2N, F-75231 Paris 05, France
关键词
gold nanorods; optical properties;
D O I
10.1016/j.colsurfa.2005.11.062
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
An nanorods are synthesized, in aqueous solution, with a rather large yield (> 79%) and narrow size distribution by using a seed-mediated method. The remaining particles are spheres, Cubes and unshaped particles. The size distribution of gold nanorods is markedly influenced by the experimental parameters and as we point out there are limitations on the shape and size reproducibilities of these nanorods. Transmission electron microscope (TEM) and Absorption Spectroscopy investigate structural and optical properties, respectively. Simulations of the absorption spectra using the discrete dipole approximation (DDA) method are presented for gold nanocubes. This makes it possible to assign the various absorption peaks observed for a collection of nanocrystals with nanorods, cubes and spheres. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:201 / 206
页数:6
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