Blue phosphors, white light illumination devices and solar cells utilizing the same
AssigneeIndustrial Technology Research Institute
InventorsTien-Heng Huang, Fang-Ching Chang, Yao-Tsung Yeh, Shian-Jy Wang
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Abstract
The invention provides phosphors composed of Eu(1-x-w)MaxMbwMgMc10O17, wherein Ma is Yb, Sn, Ce, Tb, Dy, or combinations thereof, and 0<x<0.5, Mb is Ca, Sr, Ba, or combinations thereof, and 0≦w≦0.5, and Mc is Al, Ga, Sc, In, or combinations thereof. The blue phosphors emit blue light under the excitation of ultraviolet light or blue light, and the phosphors may be further collocated with different colored phosphors to provide a white light illumination device. The blue phosphors of the invention can efficiently utilize light in solar cells.
Claims10
A blue phosphor, having a formula:
- Eu(1-x-w)MaxMbwMgMc10O17, wherein:
- Ma is Yb, Sn, Ce, Tb, Dy, or combinations thereof, and 0<x<0.5;
- Mb is Ca, Sr, Ba, or combinations thereof, and 0≦w≦0.5;
- and
- Mc is Al, Ga, Sc, In, or combinations thereof.
Dependencies are inferred from the claim text.