CEF�?CRYSTAL FUNDAMENTALS EXPLAINED

The luminescence of nanocrystalline ZnS : Mn2+ without a doubt shows a short decay time ingredient (∼one hundred ns), but additionally a lengthy (ms) decay time is observed. The quick decay time is ascribed to a defect-related emission of ZnS, and isn't in the decay with the changeover from the Mn2+ impurity. The transition with the Mn2+ features