期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 22, 期 37, 页码 19904-19910出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm33622g
关键词
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资金
- National Natural Science Foundation [21001046, 51002059, 91123008]
- 973 Program of China [2011CB933300, 2011CBA00703]
- Program for New Century Excellent Talents of the University in China [NCET-11-0179]
- Research Fund for the Doctoral Program of Higher Education [20100142120053]
- Natural Science Foundation of Hubei Province [2011CDB035]
By using electrochemical activated FTO glass as both a substrate and catalyst, we developed a facile and fast method to fabricate a WO3 center dot 2H(2)O thin film with a thickness of similar to 100 nm. Due to the specific layered crystal structure of the dihydrated phase and the good contact with the transparent conductive oxides (TCOs) layer, the as- prepared WO3 center dot 2H(2)O thin film achieved a fast coloration/bleaching response speed (t(c, 90%) = 3.2 s, t(b, 90%) = 1.2 s), excellent cyclic stability, wide optical modulation range up to 53.8% and a high coloration efficiency of 107.8 cm(2) C-1. A solid-state electrochromic device with a size of 5 cm x 5 cm was also fabricated, exhibiting high transparency contrast and good reversibility between the bleached and colored states.
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