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Luminescence centers in CaS:Er3+

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Abstract

The diffuse reflectance, photoexcitation, and luminescence spectra and luminescence decay time of CaS:Er3+ have been measured at 77 and 300 K and different activator contents. The absorption and luminescence bands due to Er3+ centers and native defects have been revealed, and the radiative electronic transitions between excited and ground Er3+ states have been identified. The characteristic decay times of the Er3+ 2 H 11/2 and 4 F 9/2 states in CaS have been determined, and radiative energy transfer from excited states of native defects to erbium ions in CaS:Er3+ has been revealed.

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Authors and Affiliations

  1. Lebedev Institute of Physics, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119991, Russia

    A. N. Georgobiani

  2. Institute of Microelectronics Technology and High-Purity Materials, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia

    A. N. Gruzintsev & T. V. Nikiforova

Authors
  1. A. N. Georgobiani
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  2. A. N. Gruzintsev
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  3. T. V. Nikiforova
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Original Russian Text © A.N. Georgobiani, A.N. Gruzintsev, T.V. Nikiforova, 2006, published in Neorganicheskie Materialy, 2006, Vol. 42, No. 7, pp. 876–880.

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Georgobiani, A.N., Gruzintsev, A.N. & Nikiforova, T.V. Luminescence centers in CaS:Er3+ . Inorg Mater 42, 794–798 (2006). https://doi.org/10.1134/S0020168506070181

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  • DOI: https://doi.org/10.1134/S0020168506070181

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