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Luminescence Properties of Rare‐Earth‐Activated Gadolinium Fluoride (GdF 3 ) and Oxyfluorides (GdOF)
Author(s) -
Lammers M. J. J.,
Blasse G.
Publication year - 1985
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.2221270228
Subject(s) - luminescence , phosphor , orthorhombic crystal system , tetragonal crystal system , rare earth , gadolinium , excitation , materials science , ion , fluoride , crystallography , chemistry , crystal structure , optoelectronics , inorganic chemistry , physics , organic chemistry , quantum mechanics , metallurgy
The luminescence properties of RE 3+ ‐activated GdF 3 and GdOF are studied for both uv and X‐ray excitation. GdOF exists in two modifications, an orthorhombic and a tetragonal one and both are used as a matrix. GdF 3 is activated with Pr 3+ , Sm 3+ , Tb 3+ , Dy 3+ , Er 3+ , and Tm 3+ and with a transition metal ion, viz. Mn 2+ . Both modifications of GdOF are activated with Tb 3+ , Er 3+ , and Tm 3+ . Especially the Tb 3+ ‐activated samples are very efficient green phosphors under both uv and X‐ray excitation.