NOT KNOWN FACTUAL STATEMENTS ABOUT CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ indeed reveals a short decay time element (∼100 ns), but also a long (ms) decay time is noticed. The short decay time is ascribed to the defect-similar emission of ZnS, and is not from the decay of your changeover of the Mn2+ impurity. The transition of your Mn2+ contains a `regular�?decay of about