AN UNBIASED VIEW OF CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ in truth displays a short decay time part (∼100 ns), and also an extended (ms) decay time is noticed. The brief decay time is ascribed to your defect-related emission of ZnS, and is not with the decay from the changeover on the Mn2+ impurity. The changeover in the Mn2+ contains a `usual�?decay of a