Electrochromic properties of nanocrystalline MoO3 thin films

被引：167
|
作者：
Hsu, Chao-Sheng [1 ]
Chan, Chih-Chieh [1 ]
Huang, Hung-Tai [1 ]
Peng, Chia-Hsiang [1 ]
Hsu, Wen-Chia [1 ]
机构：
[1] Feng Chia Univ, Dept Chem Engn, Taichung 40724, Taiwan
来源：
THIN SOLID FILMS | 2008年 / 516卷 / 15期
关键词：
molybdenum oxide; electrochromic properties; sol-gel; spin-coating; cyclic voltammetry; transmittance; nanocrystalline;
D O I：
10.1016/j.tsf.2007.09.019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electrochromic MoO3 thin films were prepared by a sol-gel spin-coating technique. The spin-coated films were initially amorphous; they were calcined, producing nanocrystalline MoO3 thin films. The effects of annealing temperatures ranging from 100 degrees C to 500 degrees C were investigated. The electrochemical and electrochromic properties of the films were measured by cyclic voltammetry and by in-situ optical transmittance techniques in 1 M LiClO4/propylene carbonate electrolyte. Experimental results showed that the transmittance of MoO3 thin films heat-treated at 350 degrees C varied from 80% to 35% at lambda = 550 nm (Delta T = similar to 45%) and from 86% to 21% at lambda >= 700 nm (Delta T = similar to 65%) after coloration. Films heat-treated at 350 degrees C exhibited the best electrochromic properties in the present study. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：4839 / 4844
页数：6
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