Direct in situ conductance evidence for non-faradaic electrical processes in poly(3-methylthiophene)

Csaba Visy, Jouko Kankare

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Registration of the conductance after the end of the electrochemical polymerization of 3-methylthiophene (PMT) indicated a large conductance increase at open circuit. Further in situ conductance measurements with the polymeric film in Bu4NPF6/acetonitrile base solution provided direct evidence for that - after the oxidation of the film - the final achievement, the accomplishment of the state of high conduction is not necessarily coupled with current flow any more. The non-faradaic step which may explain this observation is described as a chemical reorganization within the film, which involves the transformation of solvated polymer segments to a more conjugated, non-solvated form.

Original languageEnglish
Pages (from-to)1811-1820
Number of pages10
JournalElectrochimica Acta
Volume45
Issue number11
DOIs
Publication statusPublished - Feb 1 2000

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ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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