Luminescence in semimagnetic Pb1-xMnxSe quantum dots grown in a glass host: Radiative and nonradiative emission processes

We report on the radiative and nonradiative emission processes from semimagnetic Pb1-xMnxSe quantum dots (QDs) embedded in a glass matrix. Emissions between the T-4(1) -> (6)A(1) states of Mn2+ ions located in the PbSe semiconductor gap were not observed. Electron Paramagnetic Resonance spectra confirmed that Mn2+ ions are located in two distinct QD sites. Furthermore, Magnetic Force Microscopy confirmed the formation of high quality Pb1-xMnxSe QDs with uniformly distributed magnetic moments. (C) 2013 Elsevier B. V. All rights reserved.