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Electrosynthesis and characterization of an electrochromic material containing biscarbazole-oxadiazole units and its application in an electrochromic device
Date
2015-11-30
Author
UDUM, YASEMİN
HIZLIATEŞ, CEVHER GÜNDOĞDU
Ergun, Yavuz
Toppare, Levent Kamil
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Electroactive poly(2,5-Bis(9-methyl-9 H-carbazol-3-yl)-1,3,4-oxadiazole) (PolyBCO) film was synthesized to form a highly stable conducting polymer with excellent electrochromic properties. The polymer was characterized by cyclic voltammetry, UV-Vis-NIR spectroscopy and colorimetry. Spectroelectrochemistry analysis demonstrated that the polymer can undergo both p-type and n-type doping processes. The polymer has four accessible color states. Further kinetic studies demonstrated that the polymer revealed high contrast ratio (75%), fast response time (0.9 s), excellent stability and color persistence. A dual-polymer electrochromic device was constructed in sandwich configuration where PolyBCO was used as the anodically coloring material. The device switches between a transmissive light gray state and a blue-colored state with a fast response time and high stability.
Subject Keywords
Polymers
,
Optical properties
,
Electrochemical properties
,
Electrochemical techniques
URI
https://hdl.handle.net/11511/35572
Journal
THIN SOLID FILMS
DOI
https://doi.org/10.1016/j.tsf.2015.10.055
Collections
Department of Chemistry, Article