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NLO properties of polythiophenes galvanostatically electrodeposited on ITO glasses

V. FIGA1, J. LUC2, M. BAITOUL3, B. SAHRAOUI2,*

Affiliation

  1. Department of Chemical, Process and Materials Engineering, University of Palermo, Viale delle Scienze- Ed.6, 90128 Palermo, Italy
  2. Laboratory POMA, UMR CNRS 6136, University of Angers, 2 Bd Lavoisier, 49045 Angers, France
  3. Faculty of Science Dhar el Mahraz, BP1796, Fès 30 000, Morocco

Abstract

A study of nonlinear optical properties of ClO4 --doped polythiophenes, galvanostatically electrodeposited on ITO glasses, was carried out using second and third harmonic generation measurements. The effect of the oxidation state of the polymeric films was studied by comparing the nonlinear optical response of oxidised and reduced polythiophenes. Reduced polymeric films show higher values of the second and third order susceptibilities and a lower absorbance in respect to the oxidised ones. The morphology of the polythiophene films was studied by scanning electron and atomic force microscopes..

Keywords

Polythiophene, SHG, THG, NLO properties.

Submitted at: June 22, 2008
Accepted at: July 10, 2008

Citation

V. FIGA, J. LUC, M. BAITOUL, B. SAHRAOUI, NLO properties of polythiophenes galvanostatically electrodeposited on ITO glasses, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 8, pp. 2123-2128 (2008)