Electrochemical and optical properties of 5,6-bis(octyloxy)-2,1,3 benzooxadiazole containing low band gap polymers

Goker S., Hizalan G., Udum Y. A., TOPPARE L. K.

SYNTHETIC METALS, vol.191, pp.19-27, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 191
  • Publication Date: 2014
  • Doi Number: 10.1016/j.synthmet.2014.02.010
  • Journal Name: SYNTHETIC METALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.19-27
  • Middle East Technical University Affiliated: Yes

Abstract

Benzooxadiazole containing three monomers; 5,6-bis(octyloxy)-4,7-bis(4-hexylthiophen-2-yl)-2,1,3-benzoxadiazole (BOHT), 5,6-bis(octyloxy)-4,7-di-2-thienyl-2,1,3-benzoxadiazole (BODT) and 5,6-bis(octyloxy)-4,7-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-2,1,3-benzoxadiazole (BODHT) were synthesized via Stille coupling reaction. Their electrochemical polymerizations were carried out on ITO coated glass slides in a three electrode system. Electrochemical, spectral and kinetic results were given in detail and results showed that especially EDOT units in the conjugated system exert stronger influence on polymer electronic properties containing polymer hence it can be great candidate for electrochromic devices. (C) 2014 Elsevier B.V. All rights reserved.