DC conductivity studies of ZnS and Ag nanoparticles doped P3HT thin films

Interest in the P3HT: ZnS nanocomposites are increased due to their applicability as an active layer for bulk heterojunction solar cells of high open circuit voltage and charge transport in this type of solar cells determines their performance. So the study of the conduction mechanism of the P3HT:ZnS nanocomposites is significant to improve the efficiency of such solar cells, and this paper discusses both the Arrhenius Model and the Variable Range Hopping (VRH) conduction mechanism in the P3HT:ZnS nanocomposite films. It is found that the addition of the semiconductor nanoparticles does not make any remarkable change in the room temperature DC conduction of P3HT polymer. Further, the films have been studied by their absorption spectra, x-ray diffractogram, scanning electron microscope and noncontact profilometer.