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Enhancement of Electrochromic Contrast of Poly(3,4‐Ethylenedioxythiophene) by Incorporating a Pendant Viologen
Author(s) -
Ko H. C.,
Kang M.,
Moon B.,
Lee H.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400218
Subject(s) - viologen , electrochromism , poly(3,4 ethylenedioxythiophene) , pedot:pss , materials science , conductive polymer , polymer , electrochemistry , electrochromic devices , photochemistry , polymer chemistry , chemistry , electrode , composite material
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.