Structural, optical and dielectric studies in ZnO nanorods by microwave assisted method

Authors

• P. Rejani ^{1, 2}
• A. Radhakrishnan ^{1, 2}
• B. Beena ^{1, 2}

1. Nano Science Research Lab, Department of Chemistry, D.B.College,Sasthamcotta,
2. Kollam,Kerala, India.

Abstract

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.

Keywords

• Nanoparticles
• Photoluminescence
• Ac conductivity
• Optical band gap
• Dielectric constant