Electrochemical properties of polythiophene depending on preparation conditions


Kabasakaloglu M., Kiyak T., Toprak H., Aksu M.

APPLIED SURFACE SCIENCE, vol.152, pp.115-125, 1999 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 152
  • Publication Date: 1999
  • Doi Number: 10.1016/s0169-4332(99)00307-4
  • Title of Journal : APPLIED SURFACE SCIENCE
  • Page Numbers: pp.115-125

Abstract

In this study, electrochemical properties of thiophene and polythiophene (PT) were investigated in tetrabutyl ammoniumperchlorate (Bt,NP), tetraethyl ammoniumtetrafluoroborate (Et4NBF4) and tetrabutyl ammoniumhexafluorophosphate (Bt(4)NPF(6)) supporting electrolytes in acetonitrile. Polarization curves and in situ conductance measurements show that PT films have different electrochemical properties and conductance values according to the type and concentration of the supporting electrolyte employed. In addition, the oxidation time, the potential and applied current were found to have a significant influence on the conductance values of the final polymers. A suitable mechanism is proposed. (C) 1999 Elsevier Science B.V. All rights reserved.