Porous WO3/reduced graphene oxide composite film with enhanced electrochromic properties
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- 作者：BoWen Zhao ; ShuJuan Lu ; Xin Zhang ; Hao Wang ; JingBing Liu ; Hui Yan
- 关键词：Tungsten oxide ; Graphene ; Composite film ; Electrochromic
- 刊名：Ionics
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：22
- 期：2
- 页码：261-267
- 全文大小：1,071 KB
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ShuJuan Lu (1)
Xin Zhang (1)
Hao Wang (1)
JingBing Liu (1)
Hui Yan (1)
1. The College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, People’s Republic of China - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Electrochemistry
Materials Science
Physical Chemistry
Condensed Matter
Renewable Energy Sources
Electrical Power Generation and Transmission - 出版者：Springer Berlin / Heidelberg
- ISSN：1862-0760
文摘
The porous WO3/reduced graphene oxide (rGO) composite films are prepared on indium–tin oxide (ITO) glass by sol-gel method. The mixture sol combines peroxotungstic acid solution with rGO dispersion reduced by ethylene glycol (EG). The excessive EG and other organic additives are subsequently removed by annealing, which leads to the formation of porous structure. Compared with pure WO3 film, WO3/rGO composite film shows improved electrochromic performance because of enhanced double insertion/extraction of ions and electrons. It realizes a large optical modulation (64.2 % at 633 nm), fast switching speed (9.5 s for coloration and 4.5 s for bleaching), good cycling stability as well as reversibility. Keywords Tungsten oxide Graphene Composite film Electrochromic