Studies of electrochromic behavior of conducting copolymer of 3-methylthiophene with 3, 4-ethylenedioxythiophene. (2022)

• Record Type: Journal Article
• Authors: Authidevi, P.; Kavitha, G.; Kanagavel, D.; Vedhi, C.
• Is Part Of: Materials today. Volume 48:Part 2(2022)
• Page Start: 253
• Page End: 257
• Publication Date: 2022
• Subjects: 3, 4-ethylenedioxythiophene -- 3-methylthiophene -- Voltammograms -- Co-polymer -- Spectroeletrochemistry; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.07.112
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Co-polymer of poly (3-methylthiophene -co- 3, 4-ethylenedioxythiophene) (PMT-co-EDOT) can be synthesized by electrochemical method using the basic monomers such as acetonitrile/tertiary butyl ammonium perchlorate medium. The electrosynthesized co-polymer was characterized like FT-IR, UV–visible, XRD, SEM-EDS analysis and AFM technique. The spectroelectro electrochromic properties of the co-polymer were characterized through UV-transmittance spectra coupled with cyclic voltammetry (CV). From the spectro electrochemical measurement, the coloration efficiency was 685 cm 2 /C and the optical contrast (Δ%T) was 84 at the wavelength of 420 nm were calculated. The polymer films were displayed multicolour electrochromism. This co-polymer system is applicable as electrochromic devices.