电致变色
材料科学
基质(水族馆)
电致变色装置
电极
纳米技术
光电子学
纳米线
窗口(计算)
计算机科学
化学
海洋学
操作系统
地质学
物理化学
作者
Jinlong Wang,Si‐Zhe Sheng,Zhen He,Rui Wang,Zhao Pan,Haoyu Zhao,Jianwei Liu,Shu‐Hong Yu
出处
期刊:Nano Letters
[American Chemical Society]
日期:2021-11-23
卷期号:21 (23): 9976-9982
被引量:106
标识
DOI:10.1021/acs.nanolett.1c03438
摘要
Electrochromic devices have attracted considerable interest for smart windows. However, current development suffers from the requirement of the external power sources and rigid ITO substrate, which not only causes additional energy consumption but also limits their applications in flexible devices. Inspired by galvanic cell, we demonstrate a self-powered flexible electrochromic device by integrating Ag/W18O49 nanowire film with the Al sheet. The Ag nanowire film first acted as the electrode to replace the ITO substrate, then coupled with the Al sheet to induce an open-circuit voltage of ∼0.83 V, which is high enough to drive the coloration of W18O49 nanowires. Remarkably, the flexible self-powered electrochromic device only expends ∼6.8 mg/cm2 of the Al sheet after 450 electrochromic switching cycles and the size can be easily expanded with an area of 20 × 20 cm2, offering significant potential applications for the next generation of flexible electrochromic smart window.
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