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US 8,362,689 B2Granted
Phosphors and light-emitting devices using the same
AssigneeNational Chiao Tung University
InventorsTeng-Ming Chen, Te-Wen Kuo
Life of this patent
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Abstract
The present invention relates to novel phosphors, which are represented by a formula of (A1-xMx)8D12O24S2, wherein x, A, M and D are defined the same as the specification. In addition, the present invention further provides a light-emitting device using the above novel phosphors.
Claims17
A phosphor represented by a chemical formula of (A1-xMx)8D12O24S2, wherein
- 0<x<1;
- A is selected from the group consisting of Mg, Ca, Sr, Ba, Zn and a combination thereof;
- M is selected from the group consisting of Mn, Cu, Ag, Pb, Sb, Sn, Bi, Eu, Ce, Tb, Sm, Pr, Y, La, Gd, Lu, Sc, Nd, Pm, Dy, Ho, Er, Tm, Yb and a combination thereof;
- and
- D is selected from the group consisting of B, Al, Ga, In and a combination thereof.
2 more elements
A light-emitting device, comprising:
- an excitation unit for providing excitation light;
- and
- a phosphor layer capable of emitting visible light upon being excited by the excitation light, therewith the phosphor layer comprising a phosphor represented by a chemical formula of (A1-xMx)8D12O24S2, wherein
- 0<x<1;
- A is selected from the group consisting of Mg, Ca, Sr, Ba, Zn and a combination thereof;
- M is selected from the group consisting of Mn, Cu, Ag, Pb, Sb, Sn, Bi, Eu, Ce, Tb, Sm, Pr, Y, La, Gd, Lu, Sc, Nd, Pm, Dy, Ho, Er, Tm, Yb and a combination thereof;
- and
- D is selected from the group consisting of B, Al, Ga, In and a combination thereof.
5 more elements
Dependencies are inferred from the claim text.