CEF�?CRYSTAL FUNDAMENTALS EXPLAINED

The luminescence of nanocrystalline ZnS : Mn2+ certainly reveals a brief decay time component (∼a hundred ns), but additionally a long (ms) decay time is noticed. The limited decay time is ascribed to the defect-similar emission of ZnS, and is not within the decay in the changeover on the Mn2+ impurity. The transition with the Mn2+ incorporates a