• P. Prabukanthan
• K. Mageswari

Zn1-xNixO nanoparticles with Ni2+ ions concentration x = 1 to 5 mole % were synthesised by microwave-assisted technique. The structural, morphological and optical properties were analyzed as a function of the Ni2+ ion concentration. The XRD illustrate the increases in crystallinity of ZnO nanoparticles with increases of Ni2+ ions concentration and doped systems at various Ni2+ ions mole fractions x confirmed the exclusive formation of the host ZnSe with the hexagonal wurtzite structure. The SEM results show that nanorods having nanoscale diameter and length were successfully synthesized by microwave-assisted technique. The UV–visible spectroscopy verified that the band gap of ZnO was reduced due to incorporation of Ni into ZnO. Photoluminescence (PL) spectra of 1 to 5 mole % Ni2+ ion doped ZnO nanoparticles show two distinct ZnO and Ni2+ related emissions, both of which are excited via the ZnO host lattice. PL spectra confirmed a huge enhanced deep-level emission which attributes to the increase in defects concentration due to Ni2+ ions doping.

semiconductor, ZnO, doped materials, optical properties

"Effect of Ni2+ ions on the structural, morphological and optical properties of microwave-assisted synthesis of ZnO nanoparticles ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 1, page no.b728-b733, January-2023, Available :http://www.jetir.org/papers/JETIR2301197.pdf

"Effect of Ni2+ ions on the structural, morphological and optical properties of microwave-assisted synthesis of ZnO nanoparticles ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 1, page no. ppb728-b733, January-2023, Available at : http://www.jetir.org/papers/JETIR2301197.pdf