TOP CEF�?CRYSTAL SECRETS

The luminescence of nanocrystalline ZnS : Mn2+ in truth displays a brief decay time element (∼a hundred ns), but also a lengthy (ms) decay time is observed. The small decay time is ascribed to some defect-similar emission of ZnS, and is not with the decay of the transition on the Mn2+ impurity. The changeover from the Mn2+ incorporates a `ordinar