IJSR - International Journal of Scientific Research

Kibriya Siddique; Kaushik Baishya; Sanjib Karmakar

Volume : VI, Issue : V, May - 2017

SYNTHESIS AND STUDIES OF VARIATION OF STRUCTURAL AND OPTICAL PROPERTIES OF NICKEL OXIDE NANOPARTICLES PREPARED BY CHEMICAL PRECIPITATION METHOD

Kibriya Siddique, Kaushik Baishya, Sanjib Karmakar

Abstract :

NiO nanoparticles have been successfully prepared by chemical precipitation method. The crystalline nature of the nanoparticles are confirmed by X–ray diffraction (XRD) analysis and High Resolution Transmission electron Emission (HRTEM).The particle size increases from 22 nm to 47 nm respectively with increase in calcination temperatures of NiO nanoparticles from 673K to 873K. Strain is found to decrease with increase in calcination temperature. The optical band gaps are found to be of the order of 5.43 eV, 5.36 eV and 5.26 eV corresponding to calcination temperatures of NiO at 473K, 673K and 873K respectively