Optical and electrochromic properties of sol-get deposited tungsten oxide films

被引:1
作者
Ozkan, E [1 ]
Lee, SH [1 ]
Liu, P [1 ]
Tracy, CE [1 ]
Tepehan, FZ [1 ]
Pitts, JR [1 ]
Deb, SK [1 ]
机构
[1] Natl Renewable Energy Lab, Golden, CO 80401 USA
来源
SOLAR AND SWITCHING MATERIALS | 2001年 / 4458卷
关键词
mesoporous tungsten oxide; sol-gel; electrochromism;
D O I
10.1117/12.448247
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The electrochromic properties of sol-gel and mesoporous tungsten oxide thin films were investigated. Tungsten oxide films were prepared by a spin coating technique from an ethanolic solution of tungsten hexachloride. A block copolymer (BASF Pluronic p(123)), (p(1)) was employed as a template to generate the mesoporous structure. The electrochromic and optical properties such films are described and compared to standard sol-gel tungsten oxide films. A novel ultraviolet (UV) illumination method was developed to remove the polymer templates and was found to improve the coloration efficiency of tungsten oxide in general. All types of films were analyzed by transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray diffactometry and cyclic voltammetry.
引用
收藏
页码:175 / 185
页数:11
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