PHOTO AND ELECTROLUMINESCENCE STUDY PHOSPHOR PREPARED BY DIFFERENT METHODS OF ZNS:CU

ZnS : Cu phosphors were prepared by using laboratory grade chemicals through coprecipitating Cu along with ZnS using H۲S and thiourea. Photo- and electroluminescence studies indicate that these phosphors have better emission characteristics compared to the phosphors in which activator is externally added. Phosphors with luminescence at ~۵۳۰nrn were prepared. The difference between the characteristic properties of the samples seems to be due to formation of nanoparticles during the preparation of the samples by different methods.

کلیدواژه ها:

Phosphors ، Luminescence ، Zinc Sulfide ، Photoluminescence ، Electroluminescence ، Copper doped ، Nanoparticles