Polystyrene functionalized carbazole and electrochromic device application


Oral A., KOYUNCU S., KAYA İ.

SYNTHETIC METALS, vol.159, pp.1620-1627, 2009 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 159
  • Publication Date: 2009
  • Doi Number: 10.1016/j.synthmet.2009.04.026
  • Journal Name: SYNTHETIC METALS
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.1620-1627
  • Keywords: Carbazole, Electrochemical polymerization, Electrochromic devices, Conducting polymers, ELECTROCHEMICAL CHARACTERIZATION, POLYMERIC ELECTROCHROMICS, RESINS, GREEN, DERIVATIVES, MOIETIES

Abstract

Polystyrene (PS) functionalized carbazole macromonomer was synthesized and polymerized by electrochemical oxidative polymerization on the ITO-glass surface. The structure of the macromonomer was elucidated by (1)H NMR, FT-IR, UV-Vis and cyclic voltammetry (CV). The spectro-electrochemical and electrochromic properties of the polymer film were investigated. Also the greenish blue colored film converted to dark blue color by the applying potential. Polystyrene-carbazole/polyethylenedioxythiophene (PS-Carb/PEDOT) electrochromic device was assembled in sandwich configuration: ITO-coated glass/anodically coloring polymer (PS-Carb)//gel electrolyte//cathodically coloring polymer (PEDOT)/ITO-coated glass. According to kinetic studies of this device, the optical contrast Delta T% at 640 nm between -1.0 and +2.0V with a residence time of 10s was found to be 38% and switching time was measured as 1.1s. (C) 2009 Elsevier B.V. All rights reserved.