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US 8,628,688 B2Granted
Borate phosphor and white light illumination device utilizing the same
AssigneeIndustrial Technology Research Institute
InventorsWei-Jen Liu, Yi-Chen Chiu, Chien-Yueh Tung, Yao-Tsung Yeh, Shyue-Ming Jang, Teng-Ming Chen
Life of this patent
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Abstract
Borate phosphors have a formula Zn1-x-yB2O4:Eu3+x, Bi3+y (wherein 0≦x≦0.6 and 0≦y≦0.6) emit visible light under the excitation of ultraviolet light or blue light, and may be further collocated with different colored phosphors to provide a white light illumination device.
Claims7
A borate phosphor, having a formula:
- Zn0.9-y,B2O4:Eu3+0.1, Bi3+y,
- wherein
- 0.01≦y≦0.2.
Dependencies are inferred from the claim text.