Influence of temperature on impedance spectra of thin film of poly(styrenesulfonate) doped poly(3,4 ethylenedioxythiophene)

Dilek Taşkin Gazioǧlu, Fatih Dumludaǧ, Yusuf Yerli, Ahmet Altindal

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

The temperature dependence of the impedance spectra of PEDOT:PSS thin film have been investigated in the frequency range of 40 Hz-105 Hz. and temperature range 303-473 K. Obtained data reveal that a.c conductivity obeys the relation σac(ω) - Aωs and exponent s is found to decrese by increasing temperature. The obtained results were compared with the prediction of the Quantum Mechanical Tunelling (QMT) and Correlated Barrier Hopping (CBH) models. The analysis showed that the dominant conduction mechanism in PEDOT:PSS film is multihopping for frequency region 40Hz-7kHz at all temperatures, for region of 7kHz-100kHz, the small polaron tunneling model is the dominant conduction mechanism in film which contributes to the ac conductivity.

Original languageEnglish
Title of host publication7th International Conference of the Balkan Physical Union - Organized by the Hellenic Physical Society with Cooperation of the Physics Departments of Universities in Greece
PublisherAmerican Institute of Physics Inc.
Pages451-455
Number of pages5
ISBN (Print)9780735407404
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event7th International Conference of the Balkan Physical Union - Alexandroupolis, Greece
Duration: 9 Sept 200913 Sept 2009

Publication series

NameAIP Conference Proceedings
Volume1203
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference7th International Conference of the Balkan Physical Union
Country/TerritoryGreece
CityAlexandroupolis
Period9/09/0913/09/09

Keywords

  • Ac conductivity
  • Capacitance
  • Impedance spectra

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