ABOUT CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ indeed displays a short decay time element (∼one hundred ns), and also a protracted (ms) decay time is observed. The limited decay time is ascribed to the defect-connected emission of ZnS, and is not from your decay on the transition from the Mn2+ impurity. The transition of your Mn2+ incorporates a