Dual type complementary colored polymer electrochromic devices utilized by 3-ester substituted thiophenes


CAMURLU P., Cirpan A. , TOPPARE L. K.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, vol.572, no.1, pp.61-65, 2004 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 572 Issue: 1
  • Publication Date: 2004
  • Doi Number: 10.1016/j.jelechem.2004.06.002
  • Title of Journal : JOURNAL OF ELECTROANALYTICAL CHEMISTRY
  • Page Numbers: pp.61-65

Abstract

Dual type polymer electrochromic devices (ECDs) based on potentiodynamically coated films of octanoic acid 2-thiophen-3-yl-ethyl ester (OTE), decanedioic acid bis-(2-thiophen-3-yl-ethyl) ester (DATE) and ethylene dioxythiophene (EDOT) were constructed. The former two function as anodically coloring layers and the latter as a cathodically coloring layer in between tetrabutylammonium tetrafluoroborate (TBAFB) poly(methylmethacrylate) gel media. The spectroelectrochemistry, switching ability and stability of the devices were investigated by U-V-Vis spectrometry and cyclic voltarnmetry. These devices exhibit low switching voltages (0-1.4 V) and short switching times with reasonable switching stability under atmospheric conditions. (C) 2004 Elsevier B.V. All rights reserved.