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New, thermally stable Gd11(GeO4)(PO4)3O10-based upconversion phosphors

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Abstract

A series of Gd11–x–y Yb x Er y GeP3O26 germanate phosphates differing in the ratio of the Yb3+ and Er3+ active ions have been synthesized, and their luminescence spectra have been measured. According to X-ray diffraction characterization results, all of the synthesized germanate phosphates are single-phase and have a triclinic structure (sp. gr. P1). We have measured upconversion luminescence spectra due to the Er3+ 2H11/2, 4S3/2 → 4I15/2 and 4F9/2 → 4I15/2 radiative transitions in the synthesized gadolinium ytterbium erbium germanate phosphates and determined the luminescence upconversion energy yield (B en) in Gd11–x–y Yb x Er y GeP3O26. The effects of the concentrations and ratio of the dopants in the Gd11(GeO4)(PO4)3O10 germanate phosphate host on B en and the ratio of the luminescence intensities in the red and green spectral regions (R/G) have been assessed.

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    V. A. Krut’ko & M. G. Komova

  2. Prokhorov General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, Russia

    D. V. Pominova

Authors
  1. V. A. Krut’ko
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  2. M. G. Komova
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  3. D. V. Pominova
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Correspondence to V. A. Krut’ko.

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Original Russian Text © V.A. Krut’ko, M.G. Komova, D.V. Pominova, 2017, published in Neorganicheskie Materialy, 2017, Vol. 53, No. 9, pp. 970–974.

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Krut’ko, V.A., Komova, M.G. & Pominova, D.V. New, thermally stable Gd11(GeO4)(PO4)3O10-based upconversion phosphors. Inorg Mater 53, 950–955 (2017). https://doi.org/10.1134/S0020168517090114

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  • DOI: https://doi.org/10.1134/S0020168517090114

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