摘要
用金属超分子聚合物Fe L作为电致变色材料,通过滴涂的方法得到Fe L薄膜,以此薄膜为电致变色层,制成结构为PEN-ITO‖Fe L‖Gel electrolyte‖PEN-ITO的柔性Fe L基电致变色器件(ECD),其能够实现蓝色/透明色的可逆变化.研究了Fe L-ECD的电致变色性能,其最大对比度为41%,褪色和着色响应时间分别为7. 3 s和3. 6 s,着色效率达到299. 8 cm^2/C,循环寿命达到250圈.研究发现,电解质在循环过程中会沉积在对电极表面形成钝化层,这是影响其循环寿命的关键原因.
In this paper,metallo-supramolecular polymer FeL was used as the electrochromic material to prepare thin films by drop coating. Based on FeL,flexible electrochromic devices were obtained,which have a structure of PEN-ITO‖FeL‖Gel electrolyte‖PEN-ITO. The color of the devices can change reversibly between blue and transparent. The electrochromic properties of the FeLECD were studied. The maximum contrast of FeL-ECD was 41%,and the fading and coloring response time was 7. 3 s and 3. 6 s,respectively. Besides,coloring efficiency was 299. 8 cm^2/C,and the life cycle reached 250. It was found that the electrolyte deposits on the surface of the counter electrode and forms a passivation layer,which is the key reason for affecting the ECD’s life cycles.
作者
张榜
李昕
龚
刘继广
庞雅莉
张雨晴
罗胜利
张宇群
ZHANG Bang;LI Xin;GONG Yan;LIU Ji-guang ;PANG Ya-li;ZHANG Yu-qing;LUO Sheng-li;ZHANG Yu-qun(Beijing Key Laboratory of Clothing Materials R&D and Assessment,School of Materials Science and Engineering,Beijing Institute of Fashion Technology,Beijing 100029,China;Beijing Engineering Research Center of Textile Nanofiber,Beijing,100029,China;Guangzhou Fiber Product Testing and Research Institute,Guangzhou,510000,China)
出处
《北京服装学院学报（自然科学版）》
CAS
北大核心
2018年第4期9-16,共8页
Journal of Beijing Institute of Fashion Technology：Natural Science Edition
基金
北京服装学院高水平教师队伍建设专项资金(BIFTXZ201802,BIFTTD201801)
北京服装学院“服装工效与功能创新北京市重点实验室”开放课题(KYTG02170202)
北京市属高等学校高层次人才引进与培养计划项目-北京市长城学者培育计划(CTT&TCD20180321)
国家质检总局科技计划项目(2016QK036).
关键词
电致变色
金属超分子聚合物
柔性器件
循环稳定性
electrochromic
metallo-supramolecular polymer
flexible device
cyclic stability
