DETAILED NOTES ON CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ indeed reveals a brief decay time component (∼one hundred ns), but in addition a protracted (ms) decay time is noticed. The brief decay time is ascribed to a defect-linked emission of ZnS, and is not from the decay of your transition on the Mn2+ impurity. The changeover from the Mn2+ incorporates a `