Luminescent crystals of MIIGa2S4:Er3+ (MII = Eu, Yb, Ca) |
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| Authors: | A. N. Georgobiani B. G. Tagiev O. B. Tagiev R. B. Dzhabbarov S. A. Abushov F. A. Kazymova C. Barthou P. Benalloul V. M. Salmanov |
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| Affiliation: | (1) P. N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow;(2) Institute of Physics, National Academy of Sciences of Azerbaijan, 33 prosp. Dzhavid, Baku, 1143;(3) Nanoscience Institute, Pierre and Marie Curie/Rene Decartes Universities, Paris, France;(4) Baku State University, Azerbaijan |
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| Abstract: | We have studied the photoluminescent properties of MIIGa2S4:Er3+ polycrystals (MII = Eu, Yb, Ca) for excitation by radiation with λ = 976 nm as a function of temperature. The samples were obtained by solid-state reaction. We have studied the comparative characteristics of the anti-Stokes and IR luminescence of these luminophores. We have determined the mechanisms for anti-Stokes emission of MIIGa2S4:Er3+ crystals. __________ Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 74, No. 3, pp. 332–335, May–June, 2007. |
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| Keywords: | anti-Stokes luminescence energy transfer thiogallates erbium |
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