Nature of the fluorescence of divalent europium fluorides (in French)
Journal Article
·
· Mater. Res. Bull.; (United States)
The levels of the /sup 6/P/sub 7/2/(4f/sup 7/) and 4f/sup 6/5d/sup 1/ states of europium (+II) have been determined from fluorescence spectra in a series of fluorides M/sub x/B/sub y/F/sub z/ (M = alkaline-earth element, B = Li, Be, Mg, Y, Si). As in BaY/sub 2/F/sub 8/, SrSiF/sub 6/ and BaSiF/sub 6/, the /sup 6/P/sub 7/2/ level lies even at room temperature far below the 4f/sup 6/5d/sup 1/ band, only the f ..-->.. f emission is observed. The influence of the choice of the alkaline-earth and the B cations and of the coordination of europium on the relative positions of the energy levels is discussed.
- Research Organization:
- Univ. of Bordeaux
- OSTI ID:
- 7328456
- Journal Information:
- Mater. Res. Bull.; (United States), Journal Name: Mater. Res. Bull.; (United States) Vol. 11:8; ISSN MRBUA
- Country of Publication:
- United States
- Language:
- French
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Related Subjects
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
BAND THEORY
BERYLLIUM COMPOUNDS
BERYLLIUM FLUORIDES
COORDINATION VALENCES
ENERGY LEVELS
EUROPIUM COMPOUNDS
EUROPIUM FLUORIDES
FLUORESCENCE
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
LUMINESCENCE
MAGNESIUM COMPOUNDS
MAGNESIUM FLUORIDES
MEDIUM TEMPERATURE
RARE EARTH COMPOUNDS
SILICON COMPOUNDS
SILICON FLUORIDES
TRANSITION ELEMENT COMPOUNDS
VALENCE
YTTRIUM COMPOUNDS
YTTRIUM FLUORIDES
360603* -- Materials-- Properties
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
BAND THEORY
BERYLLIUM COMPOUNDS
BERYLLIUM FLUORIDES
COORDINATION VALENCES
ENERGY LEVELS
EUROPIUM COMPOUNDS
EUROPIUM FLUORIDES
FLUORESCENCE
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
LUMINESCENCE
MAGNESIUM COMPOUNDS
MAGNESIUM FLUORIDES
MEDIUM TEMPERATURE
RARE EARTH COMPOUNDS
SILICON COMPOUNDS
SILICON FLUORIDES
TRANSITION ELEMENT COMPOUNDS
VALENCE
YTTRIUM COMPOUNDS
YTTRIUM FLUORIDES