A Transparent to Opaque Electrochromic Device Using Reversible Ag Deposition on PProDOT-Me2 with Robust Stability,Advanced Optical Materials

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A Transparent to Opaque Electrochromic Device Using Reversible Ag Deposition on PProDOT-Me2 with Robust Stability
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2021-03-30 , DOI: 10.1002/adom.202002149
Kai Sheng ₁ , Bin Xue ₁ , Jianming Zheng ₁ , Chunye Xu ₁

Affiliation

A hybrid device integrating both electrochromic (EC) and metal electrodepositing effects is developed. The device consists of a working electrode made with poly(3,4-(2,2-dimethyl-propylenedioxy)thiophene) (PProDOT-Me₂), a counter electrode of bare indium tin oxide, and an electrolyte containing AgNO₃, LiBr, and Br₂. The electrolyte is specially designed to provide essential elements for both EC and electrodepositing reactions. By applying varying voltages, the device demonstrates three color states: transparent, blue, and opaque. Detailed measurements reveal that the device displays near-zero transmittance in the opaque state and can work over 10 000 cycles, with 75.7% as the maximum optical modulation and about 5 s as its response time for both coloring and bleaching processes. This study may provide a way to break the limitation of conventional electrochromic devices (ECDs).

中文翻译：

在 PProDOT-Me2 上使用可逆银沉积的透明至不透明电致变色器件，具有强大的稳定性

开发了一种结合电致变色 (EC) 和金属电沉积效应的混合装置。该装置由聚(3,4-(2,2-二甲基-丙烯二氧基)噻吩) (PProDOT-Me ₂ ) 制成的工作电极、裸氧化铟锡对电极和含有 AgNO ₃、LiBr的电解质组成, 和溴₂. 电解液专门设计用于为 EC 和电沉积反应提供基本元素。通过施加不同的电压，该设备展示了三种颜色状态：透明、蓝色和不透明。详细测量表明，该器件在不透明状态下显示出接近零的透射率，并且可以工作超过 10 000 次循环，最大光调制为 75.7%，着色和漂白过程的响应时间约为 5 秒。这项研究可能提供一种打破传统电致变色装置 (ECD) 局限性的方法。

更新日期：2021-06-05

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