RED-EMITTING NITRIDE-BASED CALCIUM-STABILIZED PHOSPHORS

Red-emitting phosphors may comprise a nitride-based composition represented by the chemical formula M a Sr b Si c Al c N e Eu f , wherein: M is at least one of Mg, Sr, Ba, Y, Li, Na, K and Zn, and 0 < a < 1.0; 1.5 < b < 2.5; 4.0 ¤ c ¤ 5.0; 0 < d ¤ 1.0; 7.5 < e < 8.5; and 0 &l...

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Bibliographische Detailangaben
Hauptverfasser:	LEUNG, Ka, Y, LIU, Shengfeng, LI, Yi-Qun, TAO, Dejie
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CHEMISTRY DYES 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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Beschreibung
Zusammenfassung:	Red-emitting phosphors may comprise a nitride-based composition represented by the chemical formula M a Sr b Si c Al c N e Eu f , wherein: M is at least one of Mg, Sr, Ba, Y, Li, Na, K and Zn, and 0 < a < 1.0; 1.5 < b < 2.5; 4.0 ¤ c ¤ 5.0; 0 < d ¤ 1.0; 7.5 < e < 8.5; and 0 < f < 0.1; wherein a+b+f >2+d/v and v is the valence of M, and wherein said red-emitting phosphor has the general crystalline structure of Sr 2 Si 5 N 8 : Eu with M and Al incorporated therein.