FACTS ABOUT CEF�?CRYSTAL REVEALED

The luminescence of nanocrystalline ZnS : Mn2+ in fact reveals a brief decay time component (∼one hundred ns), but in addition an extended (ms) decay time is noticed. The brief decay time is ascribed into a defect-relevant emission of ZnS, and isn't within the decay in the transition on the Mn2+ impurity. The transition with the Mn2+ contains a `