Improved photochromism of WO3 thin films by addition of Au nanoparticles

被引：71

作者：

He, T ^{[1
]}

Ma, Y ^{[1
]}

Cao, YA ^{[1
]}

Yang, WS ^{[1
]}

Yao, JN ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2002年 / 4卷 / 09期

关键词：

D O I：

10.1039/b108531j

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：

A WO3/Au composite thin film is prepared by depositing gold nanoparticles onto the surface of a vacuum-evaporated WO3 thin film through a spin-coating technique. It is found that the photochromism of the WO3 thin films are enhanced greatly after the modi cation with Au nanoparticles. The enhancement effect is explained according to the Schottky barrier formed at the WO3/Au interface and the surface effect of the gold nanoparticles. The results may be helpful in technical applications and provide a more detailed understanding of the photochromic mechanism.

引用

页码：1637 / 1639

页数：3