Active and Passive Electronic Components (Jan 2009)

Schottky Diodes and Thin Films Based on Copolymer: Poly(aniline-co-toluidine)

  • A. Elmansouri,
  • N. Hadik,
  • A. Outzourhit,
  • A. Lachkar,
  • A. Abouelaoualim,
  • M. E. Achour,
  • A. Oueriagli,
  • E. L. Ameziane

DOI
https://doi.org/10.1155/2009/378086
Journal volume & issue
Vol. 2009

Abstract

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Poly(aniline-co-o-toluidine) (PANI-co-POT) thin films were deposited on indium tin oxide- (ITO-) coated glass substrates by electrochemical polymerization under cyclic voltammetric conditions from aniline-co-o-toluidine monomer in an aqueous solution of HCl as a supporting electrolyte. These measurements showed that the optical band gap of the copolymer films is on the order of 2.65 eV. On the other hand, ITO/PANI-co-POT/Al devices were fabricated by thermal evaporation of Aluminum circular electrodes on the as-deposited PANI-co-POT films. The Current-Voltage characteristics of these devices are nonlinear. The diode parameters were calculated from I-V characteristics using the modified Shockley equation. The C-F characteristics were also measured.