Dual-type electrochromic devices based on conducting copolymers of thiophene-functionalized monomers


Bulut U. , Cirpan A.

SYNTHETIC METALS, vol.148, no.1, pp.65-69, 2005 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 148 Issue: 1
  • Publication Date: 2005
  • Doi Number: 10.1016/j.synthmet.2004.07.008
  • Title of Journal : SYNTHETIC METALS
  • Page Numbers: pp.65-69

Abstract

Dual polymer electrochromic devices (ECDs) composed of electrochemically deposited conducting copolymers of thiophene-functionalized monomers, 2-[(3-thienylcarbonyl)oxy] ethyl 3-thiophene carboxylate (TOET), 2,3-bis-[(3-thienylcarbonyl)oxy]propyl 3-thiophene carboxylate (TOPT), and 3-[(3-thienylcarbonyl)oxy]-2,2-bis-[(3-thienylcarbonyl)oxy]propyl 3-thiophene carboxylate (TOTPT), and polyethylene dioxythiophene (PEDOT) as the counter part were constructed with tetrabutylammonium tetrafluoroborate (TBAFB) doped gelled poly(methyl methacrylate) (PMMA) and evaluated. An electrochromic device with the following configuration was assembled - indium tin oxide (ITO)-coated glass /conducting copolymer parallel to gel electrolyte parallel to PEDOT/ITO. Spectroelectrochemistry, electrochromic switching, stability and open-circuit memory of the devices were examined. (C) 2004 Elsevier B.V. All rights reserved.