Surface-coated phosphor particle and light emitting device

Surface-coated phosphor particle and light emitting device

A surface-coated phosphor particle of the invention comprises a particle containing a phosphor and a coating section that coats the surface of the particle, wherein the phosphor has a predetermined composition, the coating section forms at least a portion of the outermost surface of the particle and...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: AKABANE, MASATO, EMOTO, HIDEYUKI
Format: Patent
Sprache:chi ; eng
Schlagworte:
ADHESIVES
BASIC ELECTRIC ELEMENTS
CHEMISTRY
DYES
ELECTRIC SOLID STATE DEVICES 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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Beschreibung
Zusammenfassung:A surface-coated phosphor particle of the invention comprises a particle containing a phosphor and a coating section that coats the surface of the particle, wherein the phosphor has a predetermined composition, the coating section forms at least a portion of the outermost surface of the particle and contains AlF3, and in an X-ray diffraction pattern of the surface-coated phosphor particle measured using a Cu-K[alpha] beam, if the light emission intensity of a maximum peak A for which 2[theta] is within a range from 23DEG to 26DEG is deemed IA, and the light emission intensity of a maximum peak B for which 2[theta] is within a range from 36DEG to 39DEG is deemed IB, then IA and IB satisfy IA/IB ≤ 0.10.