Enhanced electroactivity and electrochromism in PEDOT nanowires

  • Duvail J
  • Long Y
  • Retho P
 et al. 
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Here, we report on an in situ study of the spectroelectrochem. behavior of template prepd. poly(3,4-ethylenedioxythiophene) (PEDOT) nanowires by UV-Vis-NIR spectroscopy. A comparative anal. between spectra measured on a PEDOT thin film and on nanowires (diam.: 80 nm, 30 nm) has been made. It gives evidence for - enhanced bipolaronic band in the oxidized state, and - more efficient dedoping in the reduced state, for the 30-nm nanowires. This result, analyzed in terms of higher (de)doping level during the redox process for the smaller diam., demonstrates improved electroactivity and electrochromism, as required for sensors. [on SciFinder(R)]

Author-supplied keywords

  • Electrochromism
  • Nanowire

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  • J. L. Duvail

  • Y. Long

  • P. Retho

  • G. Louarn

  • L. Dauginet De Pra

  • S. Demoustier-Champagne

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