ABOUT CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ indeed demonstrates a brief decay time element (∼a hundred ns), but in addition a long (ms) decay time is noticed. The limited decay time is ascribed to some defect-relevant emission of ZnS, and isn't from the decay in the transition with the Mn2+ impurity. The transition of the Mn2+ provides a `stan