Preparation and characterization of tungsten oxide thin films with high electrochromic performance

被引:1
作者
Lv, Gang [1 ]
Wu, Yonggang [1 ]
Wu, Heyun [1 ]
Ling, Leijie [1 ]
Xia, Zihuan [1 ]
机构
[1] Tongji Univ, Inst Precis Opt Engn, Shanghai 200092, Peoples R China
来源
SEVENTH INTERNATIONAL CONFERENCE ON THIN FILM PHYSICS AND APPLICATIONS | 2011年 / 7995卷
关键词
Tungsten oxide; Chronoamperometry; Coloration efficiency; Coloration depth;
D O I
10.1117/12.887560
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Tungsten oxide thin films were prepared by depositing WO3 onto glass substrates coated with ITO using reactive evaporation process at ambient temperature and 200 degrees C respectively. The thin films were grown at different deposition rate. Chronoamperometry was carried out and spectral measurements were performed in situ. Results showed that the thin films prepared at low deposition rates possess higher coloration efficiency (CE), and the thin films grown at ambient temperature have high CE than those grown at 200 degrees C. The origin of the differences in coloration efficiency of the thin films were analyzed and discussed based on the electrochromic mechanism of amorphous tungsten oxide films. The samples morphology was characterized by atom force microscopy (AFM).
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页数:4
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