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Time dependence of the luminescence intensity in CdBr2: AgCl,PbBr2 crystals under N2-laser excitation at room temperature

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Materials Science-Poland

Abstract

Results of optical-luminescence studies of polydoped photochromic CdBr2: AgCl,PbBr2 crystals are presented. It is shown that the luminescence decrease vs. time under N2-laser excitation in the range of A-band of Pb2+ absorption is due to photochemical reactions. The empirical model describing the decrease of the luminescence related to silver impurities due to photochemical processes is suggested. Model parameters (trapping cross-section — σ — and the amount of centres destroyed by irradiation — β) were determined using the comparative analysis of experimental and calculated luminescence decay curves.

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Authors and Affiliations

  1. Ivan Franko National University of Lviv, 1 Universytetska str., 79000, Lviv, Ukraine

    I. M. Bolesta, B. M. Kalivoshka, I. D. Karbovnyk, V. M. Lesivtsiv, I. S. Novosad, S. S. Novosad, I. M. Rovetskyy & S. R. Velgosh

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  1. I. M. Bolesta
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  2. B. M. Kalivoshka
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  3. I. D. Karbovnyk
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  4. V. M. Lesivtsiv
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  5. I. S. Novosad
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  6. S. S. Novosad
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  7. I. M. Rovetskyy
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  8. S. R. Velgosh
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Corresponding author

Correspondence to S. S. Novosad.

Additional information

This paper was presented at 19th International Seminar on Physics and Chemistry of Solids and Advanced Materials (ISPCS19) June 12–15, 2013, Częstochowa, Poland.

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Bolesta, I.M., Kalivoshka, B.M., Karbovnyk, I.D. et al. Time dependence of the luminescence intensity in CdBr2: AgCl,PbBr2 crystals under N2-laser excitation at room temperature. Mater Sci-Pol 32, 604–609 (2014). https://doi.org/10.2478/s13536-014-0232-y

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  • DOI: https://doi.org/10.2478/s13536-014-0232-y

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