Study of polyaniline and functionalized ZnO composite film linked through a binding agent for efficient and stable electrochromic applications
Study of polyaniline and functionalized ZnO composite film linked through a binding agent for efficient and stable electrochromic applications
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聚苯胺与功能化ZnO复合膜的电致变色性能研究
DOI：
10.1016/j.electacta.2017.08.144
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发表时间：
2017-10
影响因子：
6.6
通讯作者：
Monika Jamdegni;Sandeep Kaur‐Ghumaan;A. Kaur
中科院分区：
文献类型：
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作者：
Monika Jamdegni;Sandeep Kaur‐Ghumaan;A. Kaur
A highly stable electrochromic film based on a composite of polyaniline with surface functionalized zinc oxide nanoparticles has been prepared by electrochemical polymerization. Core shell type structure was obtained by preferential polymerization of aniline around ZnO linking through (3-Aminopropyl)trimethoxysilane (3-APTS), as confirmed by High resolution transmission electron microscopy (HRTEM) investigations. Electrochemical and electrochromic properties were investigated using cyclic volatammetry, chronoamperommetry, electrochemical impedance spectroscopy (EIS) and UV–vis spectroscopy. The composite exhibited enhanced stability of 104cycles with high coloration efficiency of 89 cm2C−1and found to have superior (65%) optical contrast. As compared to pristine polyaniline, the response time reduces from 1.3 s to 0.4 s for coloration and from 1.7 s to 0.8 s for bleaching. A mechanism for its improved stability has been proposed. The pani-fZnO hybrid seems to be a potential candidate for anodically coloring electrochromic material.
