The luminescence of nanocrystalline ZnS : Mn2+ in truth demonstrates a brief decay time component (?a hundred ns), but also a lengthy (ms) decay time is observed. The brief decay time is ascribed to the defect-similar emission of ZnS, and isn't in the decay of the transition on the Mn2+ impurity. The changeover of your Mn2+ includes a `usual??decay… Read More