Optics and Spectroscopy

, Volume 117, Issue 4, pp 593–597 | Cite as

Luminescence of SrX 2 microcrystals (X = Cl, I) activated with Eu2+ ions and dispersed in a NaI matrix

  • A. S. Pushak
  • V. V. Vistovskyy
  • T. M. Demkiv
  • A. A. Halyatkin
  • Yu. R. Datsyuk
  • A. V. Gektin
  • S. V. Myagkota
  • P. A. Rodnyi
  • A. S. Voloshinovskii
Condensed-Matter Spectroscopy

Abstract

Luminescence spectroscopy has been used to determine the parameters of NaI-SrI2-Eu, NaI-SrCl2-Eu, and NaI-BaI2-Eu compounds in the energy range of 3.7–18 eV at 10 and 295 K and investigate the phase formation in these crystalline systems. The NaI-SrI2(1 mol %)-Eu(0.02 mol %) crystalline system has revealed formation of SrI2 microcrystals activated with europium ions and dispersed in the NaI matrix. Formation of SrCl2-Eu2+ microcrystals dispersed in a NaI matrix is observed for NaI-SrCl2(1 mol %)-Eu(0.02 mol %) crystalline system. The mechanisms of aggregation of impurity ions and specific features of luminescence excitation for europium ions in dispersed microcrystals are discussed.

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Copyright information

© Pleiades Publishing, Ltd. 2014

Authors and Affiliations

  • A. S. Pushak
    • 1
  • V. V. Vistovskyy
    • 2
  • T. M. Demkiv
    • 2
  • A. A. Halyatkin
    • 2
  • Yu. R. Datsyuk
    • 2
  • A. V. Gektin
    • 3
  • S. V. Myagkota
    • 4
  • P. A. Rodnyi
    • 5
  • A. S. Voloshinovskii
    • 2
  1. 1.Ukrainian Academy of PrintingLvivUkraine
  2. 2.Franko Lviv National UniversityLvivUkraine
  3. 3.Institute for Scintillation MaterialsNational Academy of Sciences of UkraineKharkivUkraine
  4. 4.Lviv Agrarian UniversityDublyanyUkraine
  5. 5.St. Petersburg State Technical UniversitySt. PetersburgRussia

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