A self-powered electrochromic device driven by a nanogenerator

被引：113

作者：

Yang, Xiaohong ^{[1
,2
]}

Zhu, Guang ^{[1
]}

Wang, Sihong ^{[1
]}

Zhang, Rui ^{[1
]}

Lin, Long ^{[1
]}

Wu, Wenzhou ^{[1
]}

Wang, Zhong Lin ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[2] Chongqing Normal Univ, Sch Phys Sci & Elect Engn, Chongqing 401331, Peoples R China

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2012年 / 5卷 / 11期

关键词：

WO3; PERFORMANCE; DISPLAY; WINDOW;

D O I：

10.1039/c2ee23194h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：9462 / 9466

页数：5

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