DETAILED NOTES ON CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ without a doubt shows a short decay time part (∼one hundred ns), but also a lengthy (ms) decay time is observed. The shorter decay time is ascribed to the defect-connected emission of ZnS, and is not within the decay with the transition of your Mn2+ impurity. The transition of your Mn2+ provides a `o