A REVIEW OF CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ certainly displays a short decay time element (∼one hundred ns), but in addition a long (ms) decay time is observed. The small decay time is ascribed to some defect-similar emission of ZnS, and is not with the decay from the transition of your Mn2+ impurity. The changeover of the Mn2+ contains a `typ