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A novel conducting polymer based on terthienyl system bearing strong electron-withdrawing substituents and its electrochromic device application
Date
2008-7
Author
Asil Alptekin, Demet
Algı, Fatih
Önal, Ahmet Muhtar
Metadata
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A novel conducting polymer bearing strong electron-withdrawing substituents (EWS) directly attached to the 3,4-positions of the thiophene ring was synthesized by electrochemical polymerization of diethyl 2,5-di(thiophen-2-yl)thiophene-3,4-dicarboxylate (SSS-Diester). The polymer (PSSS-Diester) was characterized by cyclic voltammetry, FT-IR and UV-vis spectroscopy. The polymer has a reversible redox process and demonstrates a stable electrochromic behavior: reddish orange in the neutral state, brown in the intermediate state and green in the oxidized state. Optical density and response time of the dual-type electrochromic device based on PSSS-Diester were found to be 0.23 and 0.6 s at 623 nm, respectively. It is also noteworthy that the device shows good environmental and redox stability (i.e. 94% of the optical activity of the device retained after 500th switch).
Subject Keywords
Electrochemical polymerization
,
Electrochromic device
,
Conducting polymers
,
Polythiophene
,
Electron-withdrawing substituents
URI
https://hdl.handle.net/11511/28244
Journal
Journal of Electroanalytical Chemistry
DOI
https://doi.org/10.1016/j.jelechem.2008.02.027
Collections
Department of Chemistry, Article
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D. Asil Alptekin, F. Algı, and A. M. Önal, “A novel conducting polymer based on terthienyl system bearing strong electron-withdrawing substituents and its electrochromic device application,”
Journal of Electroanalytical Chemistry
, pp. 87–93, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/28244.