2004•Advanced MaterialsRequires access

Enhancement of Electrochromic Contrast of Poly(3,4‐Ethylenedioxythiophene) by Incorporating a Pendant Viologen

Heung Cho Ko, Minhee Kang, Bongjin Moon, H. Lee

Abstract

A 3,4-ethylenedioxythiophene derivative bearing a viologen unit has been synthesized and electropolymerized to form the corresponding polymer (see Figure). Electrochemical and spectroelectrochemical studies showed that the polymer has the characteristics of both PEDOT and viologen, and possesses high electrochromic contrast due to the cooperative electrochromic action of PEDOT and viologen.

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Available abstract

Key concepts: Viologen, Electrochromism, Poly(3,4-ethylenedioxythiophene), PEDOT:PSS, Materials science, Conductive polymer, Polymer, Electrochemistry