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An electrochemically and optically stable electrochromic polymer film based on EDOT and 1,2,3,4-tetrahydrophenazine
Date
2019-12-01
Author
ERGÜN, EMİNE GÜL CANSU
Eroglu, Deniz
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In this work, 3,4-ethylenedioxythiophene (EDOT) and 1,2,3,4-tetrahydrophenazine based donor-acceptor-donor type monomer (EBE) was synthesized, electropolymerized and the resulting polymer film (P(EBE)) was investigated in terms of its electrochemical and spectroelectrochemical properties. The polymer film showed excellent electrochemical stability upon 1000 switchings by saving almost full of its electroactivity. Moreover, 95% of the optical contrast was maintained after 500 switchings. The optical band gap value was calculated using Tauc Plot method and found as 1.5 eV. P(EBE) film revealed multichromic behaviour between its fully neutral and oxidized states; dark cyanish-green at - 0.8 V, more green at - 0.5 V and transmissive green beyond 0.6 V potentials. Finally, a dual type electrochromic device (ECD) was constructed with P(EBE) and poly(3,4-ethylenedioxythiophene) (PEDOT) films and the spectroelectrochemical behaviour of ECD was depicted.
Subject Keywords
Electrical and Electronic Engineering
,
Materials Chemistry
,
Electronic, Optical and Magnetic Materials
,
General Chemistry
,
Condensed Matter Physics
,
Biomaterials
URI
https://hdl.handle.net/11511/64978
Journal
ORGANIC ELECTRONICS
DOI
https://doi.org/10.1016/j.orgel.2019.105398
Collections
Department of Chemistry, Article
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E. G. C. ERGÜN and D. Eroglu, “An electrochemically and optically stable electrochromic polymer film based on EDOT and 1,2,3,4-tetrahydrophenazine,”
ORGANIC ELECTRONICS
, pp. 0–0, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64978.