Substituent effects to the electrochromic behaviors of electropolymerized metallophthalocyanine thin films


Kobak R. Z. , Akyuz D., Koca A.

JOURNAL OF SOLID STATE ELECTROCHEMISTRY, vol.20, no.5, pp.1311-1321, 2016 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 5
  • Publication Date: 2016
  • Doi Number: 10.1007/s10008-016-3120-z
  • Title of Journal : JOURNAL OF SOLID STATE ELECTROCHEMISTRY
  • Page Numbers: pp.1311-1321

Abstract

Metallophthalocyanines (MPcs) (M = 2H(+), Zn2+, Co2+, and Cu2+) bearing diethylaminophenoxy and chloro substituents at the peripheral positions (MPc-tdea-tCl) were coated on the working electrodes with the electropolymerization and tested as electrochromic materials. Altering the metal center of MPcs affected the redox activities of MPc-tdea-tCl films. All electropolymerized MPc-tdea-tCl films behaved as conductive and redox active films in different electrolyte systems. Electrochromic properties of MPc-tdea-tCl films were investigated via the voltammetric, in situ spectroelectrochemical, and in situ spectroelectrocolorimetric measurements. H (2) Pc-tdea-tCl film did not give any electrochromic response, while ZnPc-tdea-tCl and CuPc-tdea-tCl films behave as a reasonable electrochromic material. Distinctive color changes with short response times, high optical contrast, and better optical and coulombic stabilities were only observed with CoPc-tdea-tCl film.