Electrosynthesis of Electrochromic Poly-3,4-ethylenedioxythiophene – Polyaniline Hybrid Layers

Abstract

The poly-3,4-ethylenedioxythiophene (PEDOT) – polyaniline (PANI) electrochromic films are obtained by the electrochemical polymerization of EDOT on the indium tin oxide (ITO) surfaces modified by a thin film of PANI. It is shown that the anode synthesis of PEDOT on the ITO electrode modified by PANI leads to a significant improvement of the contrast ratio and changes a potential limit of the electrooptical activity of the obtained layer as compared with the individual polymer films.

Keywords:

• Electrochemical polymerization
• electrochromic film
• polyaniline

Acknowledgment

The authors would like to thank the State Foundation on Fundamental Researchers at the Ministry of Education and Science of Ukraine, Project F27/61–2010.