structural, optical and dielectric studies in zno nanorods by microwave assisted method

zno nanorod was prepared by microwave assisted method. the crystal structure of the nano powders were confirmed by x-ray diffraction analysis and the mean particle size was estimated by the scherrer,s formula .the surface morphology of the nano particles were analyzed by   using sem . the absorption spectrum of the material in the uv-vis range was recorded .the energy band gap of the material was obtained from the absorption wavelength of the uv-vis spectrum. the short emission wavelength of the material was confirmed by using photoluminescence studies. the effects of frequency on the dielectric behaviour and ac electrical conductivity have been studied.