MATEC Web Conf.
Volume 382, 20236th International Conference on Advances in Materials, Machinery, Electronics (AMME 2023)
|Number of page(s)||5|
|Published online||26 June 2023|
Electrochromic properties of monosubstituted benzylboronic acid viologen
State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Integrated Circuit Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
Synthesis of monosubstituted benzyl boronic acid viologen (mBBV) has been achieved. The boronic acid group in mBBV can form boronic ester bonds with the hydroxyl groups in polyvinyl alcohol (PVA), resulting in an all-in-one electrochromic gel. The immobilized viologen by boronic ester bonds can slow down the diffusion rate and effectively mitigate viologen dimerization, which may address the issues caused by dimerization. The optical contrasts of mBBV and mBBV-PVA reached 49.02% and 45.01%, respectively. The electrochemical and electrochromic properties obtained from the tests suggest the potential application of mBBV in the field of electrochromics.
Key words: Electrochromic / all-in-one / boronic ester linkages / viologen
© The Authors, published by EDP Sciences, 2023
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