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The electrochromic properties of the film enhanced by forming WO3 and PANI core-shell structure  ( SCI-EXPANDED收录)  

文献类型:期刊文献

英文题名:The electrochromic properties of the film enhanced by forming WO3 and PANI core-shell structure

作者:Zhang, Yuhua[1];Zhao, Lei[1]

第一作者:Zhang, Yuhua

通讯作者:Zhao, L[1]

机构:[1]Xinxiang Univ, Sch Civil Engn & Architecture, Xinxiang 453003, Henan, Peoples R China

第一机构:新乡学院土木工程与建筑学院

通讯机构:[1]corresponding author), Xinxiang Univ, Sch Civil Engn & Architecture, Xinxiang 453003, Henan, Peoples R China.|[1107114]新乡学院土木工程与建筑学院;[11071]新乡学院;

年份:2022

卷号:33

期号:26

起止页码:20802-20811

外文期刊名:JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS

收录:;WOS:【SCI-EXPANDED(收录号:WOS:000841121800002)】;

语种:英文

外文关键词:Composite films - Diffusion - Electrochromism - Lithium compounds - Shells (structures) - Thin films

摘要:Electrochromism refers to the change in the reversible color of certain materials in response to an electric field to regulate light. In this paper, WO3 thin films were prepared by hydrothermal method, and then PANI was deposited on the surface of WO3 by electrodeposition method. The organic and non-electrochromic materials were combined together, and the core-shell structure of WO3/PANI was finally obtained. The electrochromic properties of core-shell composite films are significantly improved. In particular, the cyclic stability of core-shell composite films is superior to that of single material electrochromic films. At the same time, the composite film demonstrates fast electrochromic response and large ion diffusion coefficient. The Li+ diffusion coefficient of WO3 film is 4.37 x 10(-10) cm(2)/s, and that of WO3/PANI film is 4.93 x 10(-10) cm(2)/s, 13% higher than that of the single film. The number of electrons and ions entering the film is greatly increased, and these improvements optimize the electrochromic properties of the film. The results show that WO3/PANI core-shell structure has broad research and application prospects as electrochromic materials.

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