Study of PEDOT:PSS-SnO2 nanocomposite film as an anode for polymer electronics

Seok Joo Wang, Hyung Ho Park

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Poly(3,4-ethylenedioxythiophene) oxidized with poly(4-styrenesulfonate) (PEDOT:PSS) is a candidate material for applications in molecular electronics, such as organic field effect devices, organic photovoltaics, and organic light emitting devices. The properties of 3.5-4.0 nm sized SnO2 nanoparticles doped PEDOT:PSS films were investigated for anode application. Sheet resistance was decreased and rms roughness was slightly increased with the incorporation of SnO2 nanoparticles. However, the connectivity of conducting grains was improved by the plasticizing effect of surface -OH groups of SnO2 nanoparticle. Using photoemission spectroscopy and near edge X-ray absorption fine structure (NEXAFS), the electronic structure of the films is studied comparatively on the C 1s NEXAFS, secondary electron emission cut off, and valence band spectra. The start of electron emission retarded and valence band maximum was increased in the PEDOT:PSS-SnO2 nanocomposite films. These changes in the electronic structure resulted from emitted electron screening of core-hole in the PEDOT:PSS energy band and electron donation of SnO2 nanoparticles.

Original languageEnglish
Pages (from-to)161-165
Number of pages5
JournalJournal of Electroceramics
Volume18
Issue number1-2
DOIs
Publication statusPublished - 2007 Apr 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering
  • Materials Chemistry

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