INVESTIGATIONS ON SYNTHESIS, STRUCTURAL AND ELECTRICAL PROPERTIES OF MgO NANOPARTICLES BY SOL-GEL METHOD

Magnesium oxide (MgO) nanoparticles were synthesized by sol-gel method. The synthesized samples have been characterized by X-Ray diffraction (XRD), scanning electron microscopy (SEM) and dielectric studies. SEM and XRD characterization studies confirmed that MgO particles thus obtained have hierarchical structures with high purity, and the particle sizes. The dielectric properties of MgO nanoparticles were studied in the different frequency range of 50Hz-5MHz at different temperatures. The frequency dependence of the dielectric constant and dielectric loss is found to decrease with increase in frequency at different temperatures. In addition, the electronic properties like valence electron plasma energy, average energy gap or Penn gap, Fermi energy and electronic polarizability of the MgO nanoparticles are also calculated.