Evaluation of the influence of SrTiO3 and CoO nanofillers on the structural and electrical polymer blend characteristics for electronic devices

Abstract

Using the casting method, the films of nanocomposites (NCs) are made from a (PEOPVA) mixture with varying ratios of SrTio3 and CoO nanoparticles (NPs). The results show that increasing the ratio of (SrTiO3-CoO) NPs improved the electrical and structural characteristics of (PEO-PVA-SrTio3-CoO) NCs. The scanning electron microscopy results demonstrate that morphology on surface of the (PEO-PVA-SrTiO3-CoO) NCs is homogeneous and coherent, with several groupings or pieces distributing on the top of the surface at random. According to the dielectric characteristics, dielectric constant and dielectric loss of the NCs reduce with increasing the frequency of the applied electric field and increases with increasing concentration of (SrTiO3-CoO) nanoparticles. As the concentration of (SrTiO3-CoO) and frequency are increased, conductivity increases. The results of structural and electrical characteristics show that the (PEO-PVA-SrTiO3-CoO) NCs may be used for various electronics fields.