Luminescence of nanocrystalline ZnSe : Mn2+

The luminescence properties of nanocrystalline ZnSe:Mn2+ prepared via an inorganic chemical synthesis are described. Photoluminescence spectra show distinct ZnSe and Mn2+ related emissions, both of which are excited via the ZnSe host lattice. The Mn2+ emission wavelength and the associated luminescence decay time depend on the concentration of Mn2+ incorporated in the ZnSe lattice. Temperature-dependent photoluminescence spectra and photoluminescence lifetime measurements are also presented and the results are compared with those of Mn2+ in bulk ZnSe.