YELLOW PHOSPHORS WITH HIGHER MN CONCENTRATIONS AND THEIR APPLICATIONS FOR WHITE-LIGHT-EMITTING DEVICE

The present invention relates to a yellow phosphor with improved luminous efficiency on energy source of a blue wavelength region of 450-500 nm. The yellow phosphor of the present invention is represented as Zn1-xMnxS1-yOy, wherein Zn is replaced with one or more kinds of metals selected from Mg, Ca...

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Bibliographische Detailangaben
Hauptverfasser:	PARK, JE HONG, YU, YEOUNG MOON, CHOI, HEE RACK, LIM, SANG HYUN, KIM, JONG SU, LIM, HYUNG SEOK
Format:	Patent
Sprache:	eng ; kor
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:	The present invention relates to a yellow phosphor with improved luminous efficiency on energy source of a blue wavelength region of 450-500 nm. The yellow phosphor of the present invention is represented as Zn1-xMnxS1-yOy, wherein Zn is replaced with one or more kinds of metals selected from Mg, Ca, Sr, Ba, and Cd, S is replaced with one or more kinds of non-metals selected from Se, F, Cl, N, and P, Mn is replaced with one or more kinds of metals selected from Ce, Pr, Sm, Tb, and Yb, and x and y saftisfies the following equation, 0.05 ≤ x ≤ 0.5, 0.05 ≤ y ≤ 0.5.