OXYNITRIDE PHOSPHOR AND LIGHT-EMITTING DEVICE

Disclosed are an oxynitride phosphor and a light-emitting device which are improved in luminous efficiency and emission intensity. A SiAlON phosphor (7) is composed of an oxynitride phosphor represented by the general formula of CaX(Si,Al)12(O,N)16: Eu<2+>y wherein x is not less than 0.75 and...

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Bibliographic Details
Main Authors HIROSAKI, NAOTO, SAKUMA, KEN
Format Patent
LanguageEnglish
French
Japanese
Published 29.09.2005
Edition7
Subjects
ADHESIVES
BASIC ELECTRIC ELEMENTS
CHEMISTRY
DYES
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
SEMICONDUCTOR DEVICES
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Summary:Disclosed are an oxynitride phosphor and a light-emitting device which are improved in luminous efficiency and emission intensity. A SiAlON phosphor (7) is composed of an oxynitride phosphor represented by the general formula of CaX(Si,Al)12(O,N)16: Eu<2+>y wherein x is not less than 0.75 and not more than 1.0 and y is not less than 0.04 and not more than 0.25. The main phase of the oxynitride phosphor has an alpha-sialon crystal structure. Sont révélés ici un luminophore à oxynitrure et un dispositif d'émission de lumière qui voient leur rendement lumineux et leur intensité d'émission améliorés. Un luminophore SiAION (7) est composé d'un luminophore à oxynitrure représenté par la formule générale CaX(Si,Al)12(O,N)16: Eu<2+>y où x n'est pas inférieur à 0,75 et pas supérieur à 1 et y n'est pas inférieur à 0,04 et pas supérieur à 0,25. La phase principale du luminophore à oxynitrure à une structure cristalline SiAlON alpha.
Bibliography:Application Number: WO2005JP04972