The luminescence of nanocrystalline ZnS : Mn2+ without a doubt demonstrates a short decay time part (?100 ns), and also an extended (ms) decay time is noticed. The limited decay time is ascribed to some defect-linked emission of ZnS, and isn't from your decay of your transition on the Mn2+ impurity. The changeover in the Mn2+ contains a `standard??… Read More