Experimental and Theoretical NANOTECHNOLOGY (ETN) abbreviated as Exp. Theo. NANOTECHNOLOGY is a multidisciplinary peer-reviewed and open access journal. It includes specialized research papers, short communications, reviews and selected conference papers in special issues on the characterization, synthesis, processing, structure and properties of different principles and applications of nanotechnology with focus on advantageous achievements and applications for the specialists in engineering, chemistry, physics, materials science and medicine. ETN covers and publishes all aspects of fundamental and applied researches of experimental and theoretical nanoscale technology dealing with materials synthesis, processing, nanofabrication, nanoprobes, spectroscopy, properties, biological systems, nanostructures, nanoelectronics, nano-optics, nano-mechanics, nanodevices, nanobiotechnology, nanomedicine, nanotoxicology within the scope of the journal. ETN aims to acquire the recent and outstanding researches for the benefit of the human being.
Study of non-ohmic electrical behavior and microstructure of ZnO-V2O5 varistor
Electronic ceramics based on ZnO with 1,2,3,4 and 5 mol% of V2O5 were prepared by conventional powder processing route and sintered at 1000 C for 2 hour. Microstructure of samples was investigated by X-Ray and SEM. It was observed that the microstructure of the samples consists of ZnO grains as main phase, and the density of samples was increased with increase in V2O5 content. All of the prepared ceramics showed characteristic of non-ohmic current – voltage behavior. Non-linear coefficient increased with increase in V2O5 content. The non-linear electrical behavior was explained by considering formation of the potential barriers at grain boundaries.