Study of size dependent photoluminescence properties of copper doped sodium hexametaphosphate capped ZnS nanoparticles

► SHMP capped ZnS:Cu nanoparticles were prepared by wet the chemical method. ► Particle size depended on the chalcogenide source. ► PL spectrum shows variation with different chalcogenide sources. ► Luminescence mechanism arises due to complex interaction between host-dopant and capping agent.