Ej. Popovici et al., LUMINESCENT - GRADE ZINC-SULFIDE OBTAINED BY THIOSULFATE METHOD .3. CHARACTERIZATION OF SOME PHOSPHOR SAMPLES PREPARED FROM DIFFERENT ZNS-TYPES, Revue Roumaine de Chimie, 41(5-6), 1996, pp. 427-432
By thiosulphate method, three ZnS-types were obtained in strongly? int
ermediate and weakly sulphurated local firing atmosphere and transform
ed into corresponding ZnS:Ag,Cl phosphor samples. Their crystalline st
ructure, particle size and surface area were determined and compared w
ith the similar characteristics of the starting ZnS-types. The emissio
n and excitation spectra of ZnS:Ag,Cl samples were presented and inter
preted by comparing them with the spectra of the corresponding ZnS:[Zn
] and ZnS:Cl phosphor samples.