AN UNBIASED VIEW OF CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ without a doubt shows a brief decay time ingredient (∼a hundred ns), but in addition a lengthy (ms) decay time is observed. The brief decay time is ascribed to the defect-similar emission of ZnS, and is not with the decay of the changeover from the Mn2+ impurity. The changeover of the Mn2+ incorporat