Evidence of an enhanced interband absorption in Au nanoparticles: Size-dependent electronic structure and optical properties

被引：163

作者：

Balamurugan, B ^{[1
]}

Maruyama, T ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Chem Engn, Kyoto 6158510, Japan

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 14期

基金：

日本学术振兴会;

关键词：

D O I：

10.1063/1.2077834

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The present study reports clear evidence and physical significance of an interband transition due to the transition from the d band to an empty state in the conduction band in the optical absorption spectra of Au nanoparticles. The optical absorption due to interband transitions has been observed to dominate the plasmon absorption on decreasing the particle size. X-ray photoelectron spectroscopy and optical absorption studies reveal the metallic nature even for smaller sizes of 2.5 nm. (C) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

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