2SrO times 3Al sub 2 O sub 3 :Eu sup 2 + and 1. 29(Ba,Ca)O,6Al sub 2 O sub 3 :Eu sup 2 +; Two new blue-emitting phosphors
Journal Article
·
· Journal of the Electrochemical Society; (USA)
- Philips Lightning B.Y. (NL)
This paper reports, in the system SrO- Al{sub 2}O{sub 3} a new compound discovered with composition 2SrO {center dot} 2AL{sub 2}O{sub 3} (SAL); its structure is related to the one of 4SrO {center dot} 7Al{sub 2}O{sub 3} (SAE). The aluminate 1.29 (Ba,Ca)O,6Al{sub 2}O{sub 3} (BAL) belongs to the {beta}-alumina type compounds and is closely related to BaMgAl{sub 10}O{sub 17} (BAM). The compounds SAL and BAL are good host lattices for highly efficient EU{sup 2 +} luminescence. The europium emission peaks at 460 nm in SAL and at 440 nm in BAL. Both phosphors show a high output and good maintenance in low pressure Hg discharge lamps and are ideally suited for use in tricolor lamps.
- OSTI ID:
- 6947604
- Journal Information:
- Journal of the Electrochemical Society; (USA), Vol. 136:7; ISSN 0013-4651
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
EUROPIUM
LUMINESCENCE
PHOSPHORS
CHEMICAL COMPOSITION
ALUMINIUM OXIDES
EMISSION SPECTRA
STRONTIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
ELEMENTS
METALS
OXIDES
OXYGEN COMPOUNDS
RARE EARTHS
SPECTRA
STRONTIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
400201 - Chemical & Physicochemical Properties
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
EUROPIUM
LUMINESCENCE
PHOSPHORS
CHEMICAL COMPOSITION
ALUMINIUM OXIDES
EMISSION SPECTRA
STRONTIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
ELEMENTS
METALS
OXIDES
OXYGEN COMPOUNDS
RARE EARTHS
SPECTRA
STRONTIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
400201 - Chemical & Physicochemical Properties