Synthesis and characteristics of ZnS:Cn,Cl blue-green naao phosphor

ZnS:Cn,Cl phosphor was coated by solid-gel reaction with $SiO_2$ outside layer. The effect of $Cu^{2+}$ -doping concentration has been investigated on the luminescence characteristics of ZnS:Cn,Cl blue-green phosphors for inorganic electro luminescent device. Also, SiO2 coated layers' effect on luminescence characteristics. Evaluation of luminescence characteristics dependent on the synthesis conditions is important to get high-performance phosphors properties. EL and PL properties such as luminescence intensity and chromaticity of ZnS:Cn,Cl phosphors synthesized with different concentration of activator, $Cu^{2+}$, were analysed separately