Degradation mechanisms in electrochromic devices based on sol-gel deposited thin films

被引:15
作者
Baker, AT
Bosi, SG
Bell, JM
MacFarlane, DR
Monsma, BG
Skryabin, I
Wang, J
机构
[1] QUEENSLAND UNIV TECHNOL,SCH MECH & MFG ENGN,BRISBANE,QLD 4001,AUSTRALIA
[2] MONASH UNIV,DEPT CHEM,CLAYTON,VIC 3168,AUSTRALIA
关键词
D O I
10.1016/0927-0248(95)00047-X
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Laminated electrochromic devices have been constructed using sol-gel deposited tungsten oxide as the electrochromic layer, sol-gel deposited titanium dioxide as the counter-electrode, and a polymer electrolyte based on lithium-doped 3PEG5000. These devices have been constructed using two different techniques to allow the dismantling and reconstruction of the devices after the device has been tested. This allows degradation in different components of the devices to be studied in a quantitative fashion. In this paper we describe the device fabrication techniques, and some initial results on the degradation of devices based on sol-gel deposited electrodes. The results show that while the tungsten oxide electrodes can be cycled many hundreds of times in liquid electrolytes, degradation appears in the TiO2 electrode. The results also allow investigation of the effect of polymer conductivity on the device performance by adjustment of the electrode spacing.
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页码:133 / 143
页数:11
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