Characteristic optical properties and synthesis of gold-silica core-shell colloids

被引：52

作者：

Lee, Hyung Bock

Yoo, Young Min ^{[1
]}

Han, Young-Hwan

机构：

[1] Myongji Univ, Dept Ceram Engn, Yongin 449728, South Korea

[2] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA

[3] Sungkyunkwan Univ, Suwon 440746, South Korea

来源：

SCRIPTA MATERIALIA | 2006年 / 55卷 / 12期

关键词：

optical properties; gold-silica core-shell colloid; silica-coated gold nanoparticles; nanowire;

D O I：

10.1016/j.scriptamat.2006.08.044

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper describes the synthesis of a gold-silica core-shell colloid that could be a building block for optical instruments such as photonic crystals and plasmonic waveguides. It was possible to directly coat gold nanoparticles with uniform shells of amorphous silica via a simplified process that did not use a silane coupling agent. The thickness of the silica shells could be varied from tens to several hundred nanometers by controlling the precipitation time and concentration of tetraethoxysilane. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1127 / 1129

页数：3

共 17 条

[1] Seeding of colloidal Au nanoparticle solutions. 2. Improved control of particle size and shape [J].