B. Carbas, A. Kıvrak, E. Kavak
Feb 15, 2017
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0
Influential Citations
28
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Journal
Materials Chemistry and Physics
Abstract
Abstract The purpose of this research is to synthesize a novel monomer, namely, 1-metyl-2,3-di(thiophen-2-yl)-1 H -indole (DTI) and to present optical and electrochemical characterization of its corresponding polymer film, P(DTI). The donor thiophene unit was matched with acceptor indole unit in consideration of donor-acceptor-donor approach in order to achieve DTI monomer. This monomer was electropolymerized in the medium 0.1 M LiClO 4 /Ethanol:ACN solution mixture and a conductive indole based polymer, P(DTI) was obtained. The spectroelectrochemical studies show that P(DTI) has a band gap of 2.45 eV and a color change from pale green to dark green with a switching time of 0.9 s during oxidation and a high coloration efficiency (286 cm 2 /C) at 830 nm. Furthermore, P(DTI) shows good environmental and redox stability with a retention of 85% after 1500th switching.