Luminescence of Eu3+, Tb3+ and Tm3+ in SrLaGa3O7

The luminescence properties of Eu3+, Tb3+ and Tm3+ in strontium–lanthanum gallate, SrLaGa3O7, solid solutions were systematically examined. The emission intensity of Eu3+, Tb3+ have maxima at x=0.8 of SrLa1−xRxGa3O7 (R=Eu3+, Tb3+) under UV excitation and the activator concentration dependencies of t...

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Bibliographic Details
Published in:Journal of alloys and compounds 1999-02, Vol.283 (1-2), p.95-101
Main Authors: Kubota, Shun-ichi, Izumi, Makoto, Yamane, Hisanori, Shimada, Masahiko
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Europium
Exact sciences and technology
Gallate
Luminescence
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other solid inorganic materials
Photoluminescence
Physics
Terbium
Thulium
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Summary:The luminescence properties of Eu3+, Tb3+ and Tm3+ in strontium–lanthanum gallate, SrLaGa3O7, solid solutions were systematically examined. The emission intensity of Eu3+, Tb3+ have maxima at x=0.8 of SrLa1−xRxGa3O7 (R=Eu3+, Tb3+) under UV excitation and the activator concentration dependencies of the emission intensity are unique. The mechanism of concentration dependence is discussed by the crystal structure and the energy migration.
ISSN:0925-8388
1873-4669
DOI:10.1016/S0925-8388(98)00866-4