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Luminescence properties of Pr3+ and Sm3+ ions in natural apatites

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Abstract

The luminescence spectra of Pr3+ and Sm3+ ions in apatite Ca5[F∣(PO4)3] crystals from Spain and Russia have been compared with those for phosphate glasses doped with Pr3+, Sm3+ and Pr3+, Sm3+ ions. Time-resolved spectra measurements confirm that, in apatites, samarium ions occupy two non-equivalent crystal sites; the same is assumed for praseodymium ions. For the first time in minerals, the Stark splitting energy levels ΔE for 3H6 and 1D2 of Pr3+ ion and 6H7/2 of Sm3+ ion were determined. Some small differences in ΔE values for the Spanish and Russian apatite are discussed. The decay times of the excited levels of Pr3+, Sm3+ and Pr3+, Sm3+ doped in phosphate glass were measured at room temperature and at 77 K. The energy transfer process between samarium and praseodymium ions was observed and the energy transfer rate was calculated.

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Acknowledgments

This research was supported by Grant PB-P-04-022-00-09 from the Ministry of Science and Higher Education, Poland. In memory of my Master Professor Witold Żabiński.

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Authors and Affiliations

  1. Faculty of Earth Sciences, Univerity of Silesia, ul. Będzińska 60, 41-200, Sosnowiec, Poland

    M. Czaja & S. Bodył

  2. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422, Wrocław, Poland

    R. Lisiecki

  3. Center of Polymer and Carbon Materials, Polish Academy of Sciences, M. Skłodowskiej-Curie 34, 41-819, Zabrze, Poland

    Z. Mazurak

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  1. M. Czaja
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  2. S. Bodył
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  4. Z. Mazurak
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Correspondence to M. Czaja.

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Czaja, M., Bodył, S., Lisiecki, R. et al. Luminescence properties of Pr3+ and Sm3+ ions in natural apatites. Phys Chem Minerals 37, 425–433 (2010). https://doi.org/10.1007/s00269-009-0344-9

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  • DOI: https://doi.org/10.1007/s00269-009-0344-9

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