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Multi-color Electrochromism Containing Green Color Based on Electrochemically Polymerized Star-Shaped PhenylBithiophene

Abstract

A star-shaped thiophene derivative, namely PHBT, consisting of one central core of phenyl and three arms of bithiophene, was newly synthesized and characterized, in order to further investigate the relationship between the star-shaped monomer structure (central core and peripheral arm) and polymeric electrochromic properties. Then it was further successfully prepared into the corresponding cross-linked polymers pPHBT via electrochemical polymerization. After being applied with the positive voltage, pPHBT exhibited the excellent electrochromic properties with the surprising multi-color changing between orange-yellow, green and blue three colors and the fast color switching speed. Furthermore, electronic structure, cyclic voltammertry and electrochromic results of pPHBT can contribute much to explain for the electrochromic behavior of pTPABT with the triphenylamine core and quadruple thiophene arm. The electrochromism of pTPABT might consist of two parts deriving from the oxidative states of triphenylamine and quadruple thiophene groups respectively. This offers us a new insight into the electrochromism mechanics of conjugated polymers.

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Publication details

The article was received on 16 Jan 2018, accepted on 06 Apr 2018 and first published on 10 Apr 2018


Article type: Paper
DOI: 10.1039/C8CP00338F
Citation: Phys. Chem. Chem. Phys., 2018, Accepted Manuscript
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    Multi-color Electrochromism Containing Green Color Based on Electrochemically Polymerized Star-Shaped PhenylBithiophene

    Y. Dong, F. Luo, L. Chen, F. Yuan, Y. Hou, W. Li, S. Yan, Y. Dai, M. Ouyang and C. Zhang, Phys. Chem. Chem. Phys., 2018, Accepted Manuscript , DOI: 10.1039/C8CP00338F

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