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 · Sat Jul 01 04:00:00 EDT 1989 · Journal of the Electrochemical Society; (USA)

DOI:https://doi.org/10.1149/1.2097210· OSTI ID:6947604

Smets, B; Rutten, J; Hoeks, G; Yerlijsdonk, J ^[1]

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1. 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), Journal Name: Journal of the Electrochemical Society; (USA) Vol. 136:7; ISSN 0013-4651; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
ELEMENTS
EMISSION SPECTRA
EUROPIUM
LUMINESCENCE
METALS
OXIDES
OXYGEN COMPOUNDS
PHOSPHORS
RARE EARTHS
SPECTRA
STRONTIUM COMPOUNDS
STRONTIUM OXIDES