Abstract
For the fist time in Y2SiO5:Pr3+ nanocrystals, the ordered stage in the 1 D 2 luminescence decay curves for Pr3+ ions has been observed at anomalously low doped ion concentration (0.5 at %). This effect is caused by preferred location of the activator ions in the near-surface layer of the nanocrystal that provides the relaxation of elastic tension arising due to the difference of ionic radii of Pr3+ and Y3+ ions. Concentration quenching of Pr3+ luminescence is caused by the cooperative cross-relaxation.
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Znamenskiy, N.V., Yukina, T.G., Malyukin, Y.V. et al. Concentration quenching anomalies of activated Y2SiO5:Pr3+ nanocrystal luminescence. Laser Phys. 17, 491–495 (2007). https://doi.org/10.1134/S1054660X07040299
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DOI: https://doi.org/10.1134/S1054660X07040299