期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 44, 页码 11935-11939出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201407365
关键词
electrochromism; energy storage; metal oxides; pseudocapacitors; supercapacitors
资金
- National Natural Science Foundation of China [51102115, 21376104]
- Natural Science Foundation of Guangdong Province, China [S2013010012876]
- State Key Laboratory of Optoelectronic Materials and Technologies (Sun Yatsen University) Open Fund
Multifunctional glass windows that combine energy storage and electrochromism have been obtained by facile thermal evaporation and electrodeposition methods. For example, WO3 films that had been deposited on fluorine-doped tin oxide (FTO) glass exhibited a high specific capacitance of 639.8 Fg(-1). Their color changed from transparent to deep blue with an abrupt decrease in optical transmittance from 91.3% to 15.1% at a wavelength of 633 nm when a voltage of -0.6 V (vs. Ag/AgCl) was applied, demonstrating its excellent energy-storage and electrochromism properties. As a second example, a polyaniline-based pseudocapacitive glass was also developed, and its color can change from green to blue. A large-scale pseudocapacitive WO3-based glass window (15 x 15 cm(2)) was fabricated as a prototype. Such smart pseudocapacitive glass windows show great potential in functioning as electrochromic windows and concurrently powering electronic devices, such as mobile phones or laptops.
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