Structural, Optical and Electrical Properties of Synthesized ZnO Nanoparticles
Synthesis of Zinc oxide (ZnO) nanoparticles has been carried out using wet chemical route at different annealing temperatures. The proper phase formation of ZnO nanoparticles was confirmed by XRD and the average particle size of ZnO particles was calculated using Scherer formula. It indicates that average particle size of ZnO particles increases on increasing the annealing temperature from 450 °C to 900 °C. The scanning electron microscopy (SEM) was performed to study the shape, size and morphology of synthesized ZnO nanoparticles. Further, the Fourier transform infrared spectroscopic (FTIR) analysis was carried to study the bonding vibrations which leads to the broad absorption band related to Zn–O vibrational band. The Photoluminescence (PL) characterization shows the three peaks having wavelength from 420–500 nm (UV region) corresponding to excitation wavelength of 320 nm. I–V characteristics of ZnO nanoparticles were also performed under constant current mode at Bias Voltage of –200 mV and tunneling current of 200 pA to study the semiconducting nature and conductivity.
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Document Type: Research Article
Publication date: 01 September 2015
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