Research on Photoluminescence characteristics of the active Cl-doped ZnS

A active Cl-doping for photoluminescent ZnS powder has been carried out by thermal decomposed AlCl3 center dot 6H(2)O in a quartz tube. Room temperature photoluminescence of the Cl-doped ZnS powder has been investigated using a photoluminescence spectrometer with 365 nm excitation wave length. A strong blue photoluminescence with maximum peak about 450 nm and green photoluminescence with maximum peak about 500 nm can be observed if the doping temperature in range of 800 similar to 900 degrees C and 1100 similar to 1200 degrees C, respectively. The structural characterizations of the Cl-doped ZnS powders were performed with X-ray diffraction (XRD) and the mechanism of photoluminescence was preliminarily discussed.