THE CEF�?CRYSTAL DIARIES

The luminescence of nanocrystalline ZnS : Mn2+ indeed reveals a short decay time ingredient (∼one hundred ns), but will also an extended (ms) decay time is noticed. The brief decay time is ascribed to the defect-related emission of ZnS, and is not within the decay of the changeover from the Mn2+ impurity. The changeover from the Mn2+ has a `usual