Polystyrene functionalized carbazole and electrochromic device application |
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Authors: | Ayhan Oral Sermet Koyuncu smet Kaya |
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Affiliation: | aDepartment of Chemistry, Faculty of Sciences and Arts, Çanakkale Onsekiz Mart University, Terzioglu Campus, 17020 Çanakkale, Turkey;bÇan Vocational School, Çanakkale Onsekiz Mart University,17400, Çanakkale, Turkey |
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Abstract: | Polystyrene (PS) functionalized carbazole macromonomer was synthesized and polymerized by electrochemical oxidative polymerization on the ITO-glass surface. The structure of the macromonomer was elucidated by 1H NMR, FT-IR, UV–Vis and cyclic voltammetry (CV). The spectro-electrochemical and electrochromic properties of the polymer film were investigated. Also the greenish blue colored film converted to dark blue color by the applying potential. Polystyrene-carbazole/polyethylenedioxythiophene (PS-Carb/PEDOT) electrochromic device was assembled in sandwich configuration: ITO-coated glass/anodically coloring polymer (PS-Carb)//gel electrolyte//cathodically coloring polymer (PEDOT)/ITO-coated glass. According to kinetic studies of this device, the optical contrast ΔT% at 640 nm between −1.0 and +2.0 V with a residence time of 10 s was found to be 38% and switching time was measured as 1.1 s. |
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Keywords: | Carbazole Electrochemical polymerization Electrochromic devices Conducting polymers |
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