The electrochemical and thermal stability of PEDOT-based composite films

  • Boyoung Kim
  • , Youngkwan Lee
  • , Jae Do Nam
  • , Yongkeun Son

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The electrically conductive composite films based on poly(3,4-ethylenedioxythiophene) (PEDOT) were synthesized. The PEDOT/silicate composite was prepared by the in-situ oxidative polymerization of EDOT monomer using ferric toluene sulfonate (FTS) oxidant in which tetraethylorthosilicate was added to form inorganic silicate network by sol-gel transformation. The PEDOT-gold composite film was also prepared by the in-situ redox reaction between PEDOT in neutral state and AuCl 3 . The neutral PEDOT was oxidized by AuCl 3 while AuCl 3 was reduced to form Au metal. These PEDOT based composite films were repeatedly oxidized and reduced and the electrochemical and thermal stability was monitored by cyclic voltammetry. PEDOT-gold film exhibited highly enhanced electrochemical as well as thermal stability compared to PEDOT-PSS and PEDOT-silicate films.

Original languageEnglish
Pages (from-to)191-196
Number of pages6
JournalMolecular Crystals and Liquid Crystals
Volume444
DOIs
StatePublished - 2006

Keywords

  • Electrical stability
  • Gold
  • In-situ redox system
  • PEDOT

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