A REVIEW OF CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ in truth displays a brief decay time ingredient (∼one hundred ns), but also a protracted (ms) decay time is noticed. The small decay time is ascribed into a defect-relevant emission of ZnS, and isn't through the decay with the changeover from the Mn2+ impurity. The transition on the Mn2+ has a `stand