On the Luminescence of Sm3+, Gd3+, and Dy3+ in Yttrium Aluminium Borate

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 1981 English Publisher:WileyJournal:physica status solidi (b), volume 108, pages 541-548 (issn: 0370-1972, eissn: 1521-3951,

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Authors: P. Kellendonk; G. Blasse;

doi: 10.1002/pssb.2221080231

On the Luminescence of Sm3+, Gd3+, and Dy3+ in Yttrium Aluminium Borate

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Abstract

AbstractConcentration quenching of the luminescence in Y1−xRExAl3B4O12 (RE = Sm, Gd, Dy;0 < x ≦ 1) is examined. In the case of gadolinium compound the quenching is due to energy migration among the Gd3+ ions to quenching centres. From the decay curve of GdAl3B4O12 a lower limit for the diffusion constant at 300 K is derived. The quenching of the Sm3+ and Dy3+ ion emission can be ascribed to resonant cross‐relaxation. The interaction between the ions is probably of the electric dipole‐dipole type. The critical concentrations for the transfer processes are given.

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