AN UNBIASED VIEW OF CEF�?CRYSTAL

The luminescence of nanocrystalline ZnS : Mn2+ indeed displays a brief decay time element (∼one hundred ns), but in addition an extended (ms) decay time is noticed. The limited decay time is ascribed into a defect-similar emission of ZnS, and isn't in the decay from the changeover with the Mn2+ impurity. The transition from the Mn2+ contains a `u