Luminescence properties of Eu/sup 3+/ and Tb/sup 3+/ in Ln/sub 3/O/sub 4/X oxyhalides (Ln-X:Y-Cl, Y-Br, Gd-Br)
Journal Article
·
· J. Electrochem. Soc.; (United States)
- Laboratoire de Chimie du Solide du C.N.R.S., Universite de Bordeaux I, 33405 Talence Cedex (FR)
The luminescence properties of Eu/sup 3+/ and Tb/sup 3+/ in Y/sub 3/O/sub 4/Cl, Y/sub 3/O/sub 4/Br, and Gd/sub 3/O/sub 4/Br, a family of oxyhalides with high chemical stability, have been investigated. The emission results from rare earth ions lying in two different sites. Spectral distributions and efficiencies are compared to those of the related Eu/sup 3+/ or Tb/sup 3+/ doped LnOX compounds. The efficiency of the same order of magnitude for UV excitation into the Eu/sup 3+/ charge transfer or Tb/sup 3-/ 5d bands, but much lower for excitation through the host lattice (i.e., by x-ray or electron beam).
- OSTI ID:
- 6481031
- Journal Information:
- J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 135:8; ISSN JESOA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101 -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
400201 -- Chemical & Physicochemical Properties
BROMIDES
BROMINE COMPOUNDS
CATHODOLUMINESCENCE
CHALCOGENIDES
CHARGE DISTRIBUTION
CHARGE EXCHANGE
CHARGED PARTICLES
CHLORIDES
CHLORINE COMPOUNDS
DOPED MATERIALS
ELEMENTS
EMISSION SPECTRA
EUROPIUM
GADOLINIUM BROMIDES
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
HALIDES
HALOGEN COMPOUNDS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LUMINESCENCE
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
RARE EARTHS
SPECTRA
STABILITY
TERBIUM
TRANSITION ELEMENT COMPOUNDS
YTTRIUM BROMIDES
YTTRIUM CHLORIDES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101 -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
400201 -- Chemical & Physicochemical Properties
BROMIDES
BROMINE COMPOUNDS
CATHODOLUMINESCENCE
CHALCOGENIDES
CHARGE DISTRIBUTION
CHARGE EXCHANGE
CHARGED PARTICLES
CHLORIDES
CHLORINE COMPOUNDS
DOPED MATERIALS
ELEMENTS
EMISSION SPECTRA
EUROPIUM
GADOLINIUM BROMIDES
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
HALIDES
HALOGEN COMPOUNDS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LUMINESCENCE
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
RARE EARTHS
SPECTRA
STABILITY
TERBIUM
TRANSITION ELEMENT COMPOUNDS
YTTRIUM BROMIDES
YTTRIUM CHLORIDES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES