ELECTROCHROMIC SMART WINDOWS

被引:49
作者
MACEDO, MA
DALLANTONIA, LH
VALLA, B
AEGERTER, MA
机构
[1] Instituto de Física e Química de São Carlos, University of São Paulo, 13560 São Carlos, SP
基金
巴西圣保罗研究基金会;
关键词
D O I
10.1016/S0022-3093(05)80718-5
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A solid state electrochromic smart window has the configuration glass/TC/EC/IC/IS/TC/glass, where TC is a transparent conductor, EC is an electrochromic coating, IC is an H+ or Li+ ion conductor and IS is an H+ or Li+ ion storage layer. Application of a small voltage at the TC electrodes changes optical transmission of the device in a persistent reversible manner. Porous and slightly crystallized sol-gel coatings of TiO2-CeO2 composition have the required properties for ion storage counter electrodes. Layers 150 nm thick have 80% optical transmission in the visible range, do not color after H+ and Li+ insertion and show good electro-chemical stability. These layers have been used as H+ or Li+ ion storage electrodes, where EC was WO3. The protonic IC was a cellulose polyacetate polymer and the lithium IC was PEO-LiN(SO2CF3). Electro-chemical and optical performances of the cells are reported.
引用
收藏
页码:792 / 798
页数:7
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