Luminescence of Ce/sup 3 +/-sensitized and Tb/sup 3 +/-activated gadolinium metaphosphates (GdP/sub 3/-O/sub 9/-Ce,Tb)
Energy transfer phenomena in rare-earth metaphosphate compounds have been investigated. For monoclinic GdP/sub 3/O/sub 9/-Ce,Tb (1%) at 300 K, it is shown that energy transfer does not take place from Ce/sup 3 +/ to Gd/sup 3 +/, but from Gd/sup 3 +/ to Ce/sup 3 +/. Moreover, no energy migration over the Gd/sup 3 +/ sublattice was observed. In the case of orthorhombic La/sub 1-x/Gd/sub x/P/sub 3/O/sub 9/-Ce,Tb (1%) (x less than or equal to 0.68) on the other hand, the excitation energy migrates from the Ce/sup 3 +/ ion to the Tb/sup 3 +/ traps via the Gd/sup 3 +/ sublattice. The energy migration over the Gd/sup 3 +/ ions is probably one-dimensional. In CeP/sub 3/O/sub 9/ rapid energy migration occurs over the Ce/sup 3 +/ ions.
- Research Organization:
- State Univ. of Utrecht (Netherlands)
- OSTI ID:
- 6962117
- Journal Information:
- J. Solid State Chem.; (United States), Vol. 74:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CERIUM COMPOUNDS
ENERGY TRANSFER
LUMINESCENCE
GADOLINIUM PHOSPHATES
TERBIUM COMPOUNDS
CATIONS
EXPERIMENTAL DATA
INTERSTITIALS
MONOCLINIC LATTICES
CHARGED PARTICLES
CRYSTAL DEFECTS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DATA
GADOLINIUM COMPOUNDS
INFORMATION
IONS
NUMERICAL DATA
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
POINT DEFECTS
RARE EARTH COMPOUNDS
400201* - Chemical & Physicochemical Properties