About CeF�?Crystal
The luminescence of nanocrystalline ZnS : Mn2+ in fact shows a brief decay time component (∼one hundred ns), but in addition a long (ms) decay time is noticed. The short decay time is ascribed to your defect-associated emission of ZnS, and isn't from your decay of your transition of the Mn2+ impurity. The changeover of the Mn2+ includes a `regula