Luminescent properties of complexly substituted oxides Ме 2 Ln 8  (XO 4 ) 6 O 2  (Me=Sr, Ca; Ln=La, Gd, Eu; X= Si, P)

A. A. Vasin; M. G. Zuev

doi:10.15826/chimtech.2014.1.1.681

Luminescent properties of complexly substituted oxides Ме₂Ln₈ (XO₄)₆O₂ (Me=Sr, Ca; Ln=La, Gd, Eu; X= Si, P)

A. A. Vasin, M. G. Zuev

Abstract

In the current work it is established that the maximum intensity of a luminescence of crystalline phosphors with structure silicate-apatite of general formulae: Ca₂Eu₈Si_6(1-x)P_6xO₂₆, Sr₂Gd_7.2Eu_0.8Si_6(1-x)P_6xO₂₆ and Ca₂La_8(1-x)Eu_8xSi₆O₂₆ is reached at concentration of europium equal 0,15. The maximum intensity of a luminescence of these substances, at replacement in an anion sublattice of tetrahedrons [SiO₄]₄- on tetrahedrons [PO₄]₃- takes place at concentration of phosphorus 0,05.

Keywords

photoluminescence; phosphor; solid solutions; rare earth metals

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References

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DOI: https://doi.org/10.15826/chimtech.2014.1.1.681

Copyright (c) 2014 A. A. Vasin, M. G. Zuev

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