A self-powered electrochromic device driven by a nanogenerator
A self-powered electrochromic device driven by a nanogenerator
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DOI：
10.1039/c2ee23194h
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发表时间：
2012-11-01
影响因子：
32.5
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Yang, Xiaohong;Zhu, Guang;Wang, Zhong Lin
电致变色（EC）器件能够在由外部施加的电压驱动的电荷注入和提取时可逆地改变光学性质。纳米发电机（NG）是一种将机械能转化为电能的装置。本文介绍了一种由天然气驱动的自供电EC装置。获得了高达15.3%的平均可见光调制（Δ T-vis），电致变色响应时间（ERT）和显色效率（CE）分别为10秒和58.7 cm（2）C-1。当由硬连线DC电源供电时，这样的性能与EC相当。这项研究表明，自供电的电致变色系统可以作为单色显示器或电子广告牌的候选者。
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.