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Orange to green switching anthraquinone - based electrochromic material

Bini, Kim and Gedefaw, Desta and Pan, Caroline and Bjuggren, Jonas and Sharma, Anirudh and Wang, Ergang and Andersson, Mats (2019) Orange to green switching anthraquinone - based electrochromic material. Journal of Applied Polymer Science, 136 (27). p. 47729. ISSN 0021-8995

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Abstract

An easily accessible anthraquinone‐benzodithiophene‐based high bandgap polymer (PTAq) was synthesized by Stille coupling reactions in remarkably high yield (96.5%). The highest occupied molecular orbital energy level of the polymer was estimated from the onset of oxidation in a cyclic voltammetry study to be −5.7 eV. PTAq showed an orange‐to‐green color switching with the application of a 1.0‐V external potential to the polymer film, which was visible to the naked eye. The optical behavior change was also monitored using ultraviolet–visible absorption spectroscopy and revealed a respectable 75% transmittance change when the polymer film was subjected to a 1.0‐V external potential. The high color contrast observed makes PTAq one of the most promising materials for electrochromic device applications.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Biological and Chemical Sciences
Depositing User: Desta Gedefaw
Date Deposited: 08 Apr 2019 11:06
Last Modified: 08 Apr 2019 11:06
URI: http://repository.usp.ac.fj/id/eprint/11462
UNSPECIFIED

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