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

C. 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

Fingerprint

Electropolymerization
Acetonitrile
Polymer films
Polymers
Oxidation
Networks (circuits)
poly(3-methylthiophene)
acetonitrile

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

Direct in situ conductance evidence for non-faradaic electrical processes in poly(3-methylthiophene). / Visy, C.; Kankare, Jouko.

In: Electrochimica Acta, Vol. 45, No. 11, 01.02.2000, p. 1811-1820.

Research output: Contribution to journalArticle

@article{8ab38d9595d3420f9296657a2fa3e5ef,
title = "Direct in situ conductance evidence for non-faradaic electrical processes in poly(3-methylthiophene)",
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.",
author = "C. Visy and Jouko Kankare",
year = "2000",
month = "2",
day = "1",
doi = "10.1016/S0013-4686(99)00404-1",
language = "English",
volume = "45",
pages = "1811--1820",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Limited",
number = "11",

}

TY - JOUR

T1 - Direct in situ conductance evidence for non-faradaic electrical processes in poly(3-methylthiophene)

AU - Visy, C.

AU - Kankare, Jouko

PY - 2000/2/1

Y1 - 2000/2/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0033908780&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033908780&partnerID=8YFLogxK

U2 - 10.1016/S0013-4686(99)00404-1

DO - 10.1016/S0013-4686(99)00404-1

M3 - Article

AN - SCOPUS:0033908780

VL - 45

SP - 1811

EP - 1820

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

IS - 11

ER -