Dual-type electrochromic devices based on both n- and p-dopable poly(dithieno[3,4-b,3 ',4 '-e]-[1,4]-dithiine)

Sahin E., Camurlu P., Toppare L.

SYNTHETIC METALS, vol.156, pp.1073-1077, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 156
  • Publication Date: 2006
  • Doi Number: 10.1016/j.synthmet.2006.06.020
  • Journal Name: SYNTHETIC METALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1073-1077
  • Middle East Technical University Affiliated: Yes


Polydithieno[3,4-b,3'4'-e]-[1,4]-dithiine (PDTH), being both n- and p-dopable, reveals remarkable color changes as both anodically and cathodically coloring material. In order to investigate its utilization in the electrochromic devices, three different transmissive/absorbtive type polymer electrochromic devices based on both p-type and n-type PDTH were assembled. These are, namely (1) p-type PDTH/poly(3,4-ethylenedioxythiophene) (PEDOT); (2) polythiophene/n-type PDTH; (3) p-type PDTH/n-type PDTH. Spectroelectrochemistry, switching ability, stability and open-circuit memory of the devices were investigated by UV-vis spectrophotometer and cyclic voltammetry. These devices exhibit reasonable switching times and stability under atmospheric conditions. (c) 2006 Elsevier B.V. All rights reserved.