AN UNBIASED VIEW OF CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ indeed displays a short decay time component (∼a hundred ns), but additionally a protracted (ms) decay time is observed. The shorter decay time is ascribed to your defect-similar emission of ZnS, and isn't from your decay of the transition on the Mn2+ impurity. The changeover from the Mn2+ provides a