Effect of Pb2+ doping on the luminescence properties of CoWO4 nano ceramics

Abstract

Undoped and Pb2+ doped CoWO4 nanosamples were successfully prepared by simple co-precipitation method without using surfactant in an aqueous medium and characterized. Particle size, band gap energy and the PL intensity were found to be controlled by Pb2+ concentration. The middle doped samples Pb2 and Pb3 were giving maximum PL emission intensity which is attributed to the increased particle size and contributions from PbWO4 and CoWO4 phases enhancing its multifunctional property.