Abstract

• This work focuses on the investigation of electrical properties of organic-inorganic nanocomposite films. Poly (pyrrole-2formyl pyrrole)-zinc oxide (P(Py-2FPy)-ZnO) composite films are fabricated by ex-situ chemical copolymerization through spin coating technique. Organic copolymer P(Py-2FPy) films were prepared by chemical copolymerization. For the inorganic components, ZnO nanoparticles were synthesized by room temperature solution method. P(Py-2FPy)-ZnO composite films with different concentrations of ZnO nanoparticles are fabricated in order to investigate the effects of ZnO contents on the electrical properties of films. The structural properties of copolymer and composite films were characterized by Ultraviolet-visible (UV-Vis) spectroscopy. The electrical properties of composite films including the sheet resistivity and conductivities of the composite films are measured by four-point probe method. Finally, the results of sheet resistivity and conductivity of composite films depending on concentration of ZnO nanoparticles are discussed. It was found out that the conductivities of composite films were increased with increasing the concentration of ZnO nanoparticles.