A newly-designed self-powered electrochromic window

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• 作者：Xingming Wu ; Jianming Zheng ; Chunye Xu
• 关键词：self ; powered electrochromic window ; redox electrolyte ; poly(3 ; 4 ; (2 ; 2 ; dimethylpropylenedioxy)thiophene) ; transmittance modulation ; light intensity
• 刊名：Science China Chemistry
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：60
• 期：1
• 页码：84-89
• 全文大小：966KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry/Food Science, general;
• 出版者：Science China Press
• ISSN：1869-1870
• 卷排序：60

文摘

By converting incident light into electric power, self-powered electrochromic window (SP-ECW) can achieve color change in electrochromic layer with no need for external voltage. In this work, a newly-designed SP-ECW is proposed for altering its color between deep blue and colorless state according to on/off state of incident light. The device consists of a working electrode with planar integration of photovoltaic (PV) and electrochromic (EC) elements on one electrode, a platinum counter electrode and a redox electrolyte comprising Br–/Br₃– couple. A high transmittance modulation of 41% at 582 nm is obtained. Electrical energy converted from light is not only sufficient to drive the device, but also can be outputted to the external circuit.