Diode behavior of electrophoretically deposited polyaniline on TiO 2 nanoparticulate thin film electrode

Research output: Contribution to journalJournal articlepeer-review

Abstract

An inorganic/organic hetrostructure diode was constructed by the electrophoretic deposition of the p-type polyaniline (PANI) on an n-type titanium oxide (TiO 2) nanoparticulate thin film. The bonding and internalization of PANI to TiO 2 nanoparticulate thin film were confirmed by the morphological, structural and optical studies of electrophoretically deposited PANI/TiO 2 nanoparticulate thin film. The increased size of TiO 2 nanoparticles indicated the well penetration of PANI molecules into the pores of mesoporous TiO 2 nanoparticulate thin film. The XPS studies of PANI/TiO 2 heterostructure exhibited the surface bonding and interaction between PANI molecules and TiO 2 nanoparticles. The current-voltage (I-V ) characterization of PANI/TiO 2 heterostructure was carried out in the forward and the reverse bias at the applied voltage ranges from -1 V to +1 V with a scan rate of 2 mV/s. The constructed Pt/PANI/TiO 2 heterostructure device established diodic behavior with non-linear nature of I-V curves.

Original languageEnglish
Pages (from-to)1559-1564
Number of pages6
JournalJournal of nanoscience and nanotechnology
Volume11
Issue number2
DOIs
StatePublished - 2011.02

Keywords

  • Electrophoretic deposition
  • I-V characteristics
  • Nanoparticulates
  • Polyaniline
  • XPS analysis

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Engineering - Chemical
  • Chemistry
  • Physics & Astronomy
  • Biological Sciences

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