EXAMINE THIS REPORT ON CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ indeed displays a short decay time ingredient (∼one hundred ns), and also an extended (ms) decay time is observed. The small decay time is ascribed to some defect-associated emission of ZnS, and isn't within the decay with the transition with the Mn2+ impurity. The transition of the Mn2+ incorporates