Enhancing electrochromic and kinetic properties of poly(2,3-bis(4-tert-butylphenyl)-5,8-di(1H-pyrrol-2-yl) quinoxaline) by copolymerization

Celebi S., Baran D., Balan A., TOPPARE L. K.

ELECTROCHIMICA ACTA, vol.55, no.7, pp.2373-2376, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 55 Issue: 7
  • Publication Date: 2010
  • Doi Number: 10.1016/j.electacta.2009.12.010
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2373-2376
  • Keywords: Electrochemical polymerization, Conducting polymer, Low band gap, Multicolor electrochromism, Copolymerization, CONDUCTING COPOLYMER, DONOR UNIT, POLYMER, DEVICES, 3,4-ETHYLENEDIOXYTHIOPHENE, DERIVATIVES, EDOT
  • Middle East Technical University Affiliated: Yes


Electrochemical copolymerization was utilized to combine several properties into a single material in order to obtain a highly stable polymer with a low band gap to meet the requirements for color variation. In that sense, two new donor acceptor type electrochromic copolymers of 2,3-bis(4-tert-butylphenyl)5,8-di(1H-pyrrol-2-yl) quinoxaline (TBPPQ) with bis(3,4-ethylenedioxythiophene) (BiEDOT) and with 4,7-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-2-dodecyl-2H-benzo [ 1,231 triazole (BEBT) were synthesized by electrochemical polymerization. Polymers revealed multicolor electrochromic properties with distinct accessible states and low operation potentials. Electrochromic and kinetic properties of polymers were investigated using cyclic voltammetry (CV) and in situ UV-vis-NIR spectroscopy. (C) 2009 Elsevier Ltd. All rights reserved.