Preparation of and photo‐ and electroluminescence characteristics of ZnS:Cu phosphor

ZnS:Cu phosphors were prepared by co‐precipitating Cu along with ZnS using H₂S and thiourea. Phosphors giving luminescence at around 530 nm were prepared. The difference in the characteristic properties among the samples prepared appeared to be due to the formation of nanoparticles during the preparation of the samples by different methods.