电致变色
烧结
材料科学
电极
电致变色装置
闪光灯(摄影)
光电子学
钨
无定形固体
复合材料
化学工程
冶金
光学
有机化学
化学
物理化学
工程类
物理
作者
Hyojun Kim,Minhee Son,Sung‐Hoon Ahn,Caroline Sunyong Lee
标识
DOI:10.1016/j.cap.2020.03.008
摘要
Tungsten oxide is an electrochromic material, from which thin films are conventionally fabricated via heat treatment. Here, we develop a flash light sintering method to reduce sintering time; sintering delivers instantaneous photon energy created via the photothermal effect. The electrochromic efficiency of device with a flash light-sintered electrode was 88.50 cm2/C, about 1.46-fold greater than that of the device with a heat-sintered electrode. The diffusion coefficients of the former device were 1.35- and 1.46-fold greater than those of the latter device during bleaching and coloring, respectively. Therefore, a new way of sintering electrode was studied to show that the device with flash light–sintered electrode demonstrate better electrochromic performance than the device with heat-sintered one by enabling amorphous phase formation.
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