Spectroelectrochemical studies of plasmon coupled silver nanoparticles

被引：19

作者：

Daniels, JK ^{[1
]}

Chumanov, G ^{[1
]}

机构：

[1] Clemson Univ, Dept Chem, Clemson, SC 29634 USA

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2005年 / 575卷 / 02期

关键词：

cyclic voltammetry; spectroelectrochemistry; surface plasmon resonance; absorbance; metal nanoparticle electrode; electron transfer;

D O I：

10.1016/j.jelechem.2004.09.012

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The effect of the applied potential on the cooperative plasmon mode in 2D coupled arrays of silver nanoparticles was studied using a spectroelectrochemical approach in different electrolytes. The particles had an average diameter of 80 nm and were adsorbed on indium tin oxide (ITO) substrates modified with poly-4-vinyl pyridine (PVP). Spectral changes were observed and presented as difference spectra measured between applied potentials and the potential of zero charge (pzc) for silver. The changes were interpreted as potential-induced changes of the local dielectric environment around the nanoparticles due to reorganization of the electric double layer. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：203 / 209

页数：7

共 16 条

[1] Optical properties of nanoscopic gold particles adsorbed at electrode surfaces: The effect of applied potential on plasmon resonance absorption. [J].