AN UNBIASED VIEW OF CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ indeed reveals a short decay time ingredient (∼100 ns), but also a protracted (ms) decay time is noticed. The small decay time is ascribed to the defect-associated emission of ZnS, and isn't through the decay of the transition of the Mn2+ impurity. The changeover of the Mn2+ incorporates a `usual�?