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Fabry-Perot cavity tunable multicolor flexible electrochromic device based on porous filter membrane

文献类型： 外文期刊

作者： Rao, Aiguo 1 ; Zhang, Shiyu 1 ; Hu, Junjie 1 ; Zheng, Luyi 1 ; Yao, Qi 2 ; Lin, Kai 4 ; Niu, Chunhui 1 ; Wang, Lei 1 ; Yang, Mingqing 1 ; Lv, Yong 1 ; Chen, Qingshan 1 ;

作者机构： 1.Beijing Informat Sci & Technol Univ, Sch Instrument Sci & Opto Elect Engn, Beijing 100192, Peoples R China

2.BOE Technol Grp Co Ltd, Beijing 100176, Peoples R China

3.Beijing Inst Technol, Sch Opt & Photon, Beijing 100081, Peoples R China

4.Beijing Acad Agr & Forestry Sci, Fisheries Sci Inst, Beijing 100068, Peoples R China

关键词： Electrochromic device; Fabry-Perot cavity; WO3; Flexible

期刊名称：JOURNAL OF ALLOYS AND COMPOUNDS （ 影响因子：5.8； 五年影响因子：5.3 ）

ISSN： 0925-8388

年卷期： 2023 年 969 卷

页码：

收录情况： SCI

摘要： In recent years, Fabry-Perot (F-P) cavity-type electrochromic devices composed of more stable inorganic materials have been extensively investigated for achieving colorful reflective displays and military camouflage functions. However, the majority of reported substrates for colorful F-P cavity electrochromic devices are rigid conductive glasses, which hinders their practical application in flexible reflective displays and camouflage. Herein, we construct a WO3/W/Au bilayer F-P cavity multicolor tunable electrochromic device based on a flexible porous filter membrane, in which WO3, an inorganic electrochromic material, is used as the electrochromic layer, metallic W as the partial reflective layer, and metallic Au as the total reflective and conductive layer. Highly flexible bilayer F-P cavity multicolor electrochromic devices have been prepared by combining UVcurable electrolytes and thermoplastic sealing procedures. By adjusting the thickness of the WO3 layer, a wide spectrum of colors including yellow, purplish red, violet, blue, green, olivine, peach, etc. can be obtained. In addition, by adjusting the driving voltage of the electrochromic device, more precise color adjustment can be achieved. The electrochromic device has a fast coloring (2.06 s) and bleaching (2.70 s) response time, providing a new solution for future flexible colorful reflective display devices.

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