Journal
OPTICAL MATERIALS
Volume 31, Issue 3, Pages 490-495Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2007.10.020
Keywords
Nanoparticles; Radiative recombination processes; Transition metal ions; Rare earth ions
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Nanoparticles of wide band gap compounds, when doped with rare earth or transition metal ions, are perspective candidates for efficient phosphors in a new generation of light sources for an overhead illumination, i.e., in compact fluorescence lamps and in semiconductor-based white light emitting diodes. Mechanisms of emission enhancement in doped nanoparticles are discussed based on the relevant experimental results. Mechanisms observed are due to carrier confinement, n-type co-doping, due to surface plasmons generation and super radiance. (C) 2007 Elsevier B.V. All rights reserved.
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