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An all-solid-state polymeric electrochromic device based on two well-matched electrodes with fast switching time and excellent cycling stability
Reactive & Functional Polymers ( IF 4.5 ) Pub Date : 2020-09-12 , DOI: 10.1016/j.reactfunctpolym.2020.104737
Xiaojing Lv , Yuanyuan Yang , Libin Xu , Jin Li , Zhiyi Xu , Rui Zhu , Dominic S. Wright , Cheng Zhang

All-solid-state polymeric electrochromic devices (ECDs) were fabricated based on anodic poly(4,4′,4″-tris[4-(2-bithienyl)phenyl]amine) (PTBTPA) and cathodic poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS). PEDOT:PSS films with various thicknesses were obtained to control their charge capacities and neutral transmittances. It is found that the compatibility between PTBTPA and PEDOT:PSS has an important influence on the driving potential and electrochromic properties of ECDs. Therefore, an ECD with well-matched color and charge capacity between PTBTPA and PEDOT:PSS exhibits excellent electrochromic properties under low driving potential ranges (0–1.4 V) with high optical contrast of 54.3%, fast switching time of 1.02 s (colored time) and 0.51 s (bleached time), large coloration efficiency of 812.1 cm2‧C−1 and good cycling stability (which retains 70.2% of its original optical contrast after 10,000 cycles). The optimized all-solid-state polymeric ECD has potential applications in smart windows, electronic-tags and rearview mirrors.



中文翻译:

基于两个电极匹配的全固态聚合物电致变色器件,具有快速切换时间和出色的循环稳定性

基于阳极聚(4,4',4''-三[4-(2-(2-噻吩基)苯基]胺)(PTBTPA)和阴极聚(3,4-)制备全固态聚合物电致变色器件(ECD)乙二氧基噻吩):聚苯乙烯磺酸盐(PEDOT:PSS)。获得了各种厚度的PEDOT:PSS薄膜,以控制其电荷容量和中性透射率。发现PTBTPA和PEDOT:PSS之间的相容性对ECD的驱动电势和电致变色性能具有重要影响。因此,在PTBTPA和PEDOT:PSS之间具有良好匹配的颜色和电荷容量的ECD在低驱动电势范围(0-1.4 V)下具有出色的电致变色性能,具有54.3%的高光学对比度,1.02 s的快速切换时间(着色时间) )和0.51 s(漂白时间),显色效率高达812.1 cm 2‧C -1和良好的循环稳定性(在10,000次循环后保留其原始光学对比度的70.2%)。经过优化的全固态聚合物ECD在智能窗户,电子标签和后视镜中具有潜在的应用。

更新日期:2020-09-20
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