期刊
ENERGY & ENVIRONMENTAL SCIENCE
卷 5, 期 11, 页码 9462-9466出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ee23194h
关键词
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资金
- Airforce, MURI, U.S. Department of Energy, Office of Basic Energy Sciences [DE-FG02-07ER46394]
- NSF [CMMI 0403671]
- Chinese Academy of Sciences [KJCX2-YW-M13]
Electrochromic (EC) devices are capable of reversibly changing optical properties upon charge injection and extraction driven by an externally applied voltage. A nanogenerator (NG) is a device that converts mechanical energy into electricity. This paper demonstrates a self-powered EC device driven by an NG. An average visible optical modulation (Delta T-vis) as large as 15.3% was obtained, with electrochromic response time (ERT) and coloration efficiency (CE) of 10 seconds and 58.7 cm(2) C-1, respectively. Such a performance is comparable to an EC when powered by a hardwired DC power. This study indicates that the self-powered electrochromic system can be a candidate for monochrome displays or electronic billboards.
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