NOT KNOWN FACTUAL STATEMENTS ABOUT CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ indeed shows a brief decay time component (∼one hundred ns), but additionally a protracted (ms) decay time is observed. The limited decay time is ascribed into a defect-connected emission of ZnS, and isn't in the decay on the transition of the Mn2+ impurity. The transition of the Mn2+ provides a `usu