Construction of simple gold nanoparticle aggregates with controlled plasmon-plasmon interactions

被引：146

作者：

Westcott, SL

Oldenburg, SJ

Lee, TR

Halas, NJ ^{[1
]}

机构：

[1] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

[2] Rice Univ, Rice Quantum Inst, Houston, TX 77005 USA

[3] Univ Houston, Dept Chem, Houston, TX 77204 USA

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 300卷 / 5-6期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会; 美国国家航空航天局;

关键词：

D O I：

10.1016/S0009-2614(98)01410-9

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：

We have developed a colloidal assembly for the study of plasmon-plasmon interactions between gold nanoparticles. Colloidal aggregates of controlled size and interparticle spacing were synthesized on silica nanoparticle substrates. Following the immobilization of isolated gold nanoparticles onto silica nanoparticles, the surfaces of the adsorbed gold nanoparticles were functionalized with 4-aminobenzenethiol. This molecular linker attached additional gold nanoparticles to the 'parent' gold nanoparticle, forming small nanoparticle aggregates. The optical absorption spectrum of these clusters differed from that of gold colloid in a manner consistent with plasmon-plasmon interactions between the gold nanoparticles. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

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页码：651 / 655

页数：5

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