CEF�?CRYSTAL - AN OVERVIEW

The luminescence of nanocrystalline ZnS : Mn2+ in truth displays a brief decay time element (∼a hundred ns), but in addition a lengthy (ms) decay time is observed. The brief decay time is ascribed to some defect-linked emission of ZnS, and isn't through the decay in the changeover on the Mn2+ impurity. The transition with the Mn2+ includes a `sta