WHAT DOES CEF�?CRYSTAL MEAN?

The luminescence of nanocrystalline ZnS : Mn2+ indeed exhibits a brief decay time part (∼a hundred ns), but also a long (ms) decay time is noticed. The quick decay time is ascribed to your defect-related emission of ZnS, and isn't in the decay in the transition in the Mn2+ impurity. The transition with the Mn2+ features a `normal�?decay of abou