Related Experiment Video
Updated: Sep 9, 2025
An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
Published on: February 27, 2019
Solution polarity modulated electrochromic devices with tunable colored states
Junjie Chen1, Wanli Li1, Ke Li1
1School of Intelligent Manufacturing, Jiangnan University, Wuxi 214122, P.R. China. dingsu@jiangnan.edu.cn.
Abstract:
Electrochromic devices (ECDs) hold great promise for applications in displays and smart military camouflage. However, achieving different electrochromic colored states with compatible integration into a monolithic device remains a significant challenge. In this study, we realized effective color modulation of ECDs by tuning the solvent composition, leveraging the effects of solvent polarity. The resulting ECDs exhibited tunable absorption peaks and color switching behaviors across various solvent systems. The ECDs achieved a high optical contrast of 74%, while maintaining a coloration efficiency of 41.6 cm2 C-1.
