CEF�?CRYSTAL FUNDAMENTALS EXPLAINED

The luminescence of nanocrystalline ZnS : Mn2+ certainly displays a short decay time component (∼one hundred ns), but also a protracted (ms) decay time is noticed. The quick decay time is ascribed to the defect-relevant emission of ZnS, and is not within the decay on the changeover from the Mn2+ impurity. The transition in the Mn2+ provides a `st