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On the Luminescence of Sm 3+ , Gd 3+ , and Dy 3+ in Yttrium Aluminium Borate
Author(s) -
Kellendonk P.,
Blasse G.
Publication year - 1981
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221080231
Subject(s) - luminescence , yttrium , quenching (fluorescence) , gadolinium , ion , analytical chemistry (journal) , dysprosium , materials science , aluminium , boron , diffusion , praseodymium , atomic physics , chemistry , inorganic chemistry , fluorescence , metallurgy , physics , thermodynamics , optoelectronics , organic chemistry , chromatography , quantum mechanics , oxide
Concentration quenching of the luminescence in Y 1− x RE x Al 3 B 4 O 12 (RE = Sm, Gd, Dy;0 < x ≦ 1) is examined. In the case of gadolinium compound the quenching is due to energy migration among the Gd 3+ ions to quenching centres. From the decay curve of GdAl 3 B 4 O 12 a lower limit for the diffusion constant at 300 K is derived. The quenching of the Sm 3+ and Dy 3+ 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.