The effect of polyaniline content on some electrophysical properties of ZnO-V2O5- polymer

ZnO-polymer-pentoxide vanadium composite were prepared using hot pressing method at a temperature of 130°C and a pressure of 60Mpa and their electrophysical properties were studied as a function of polyaniline content. The results show that increasing polyaniline content, decreases Nonlinear coefficient, breakdown voltage and potential barrier height and increases leakage current. Study of SEM micrographs of samples show that grain boundaries of these composite varistors make nonlinear behavior to be created.