Invention Grant
US08414796B2 Nano-YAG:Ce phosphor compositions and their methods of preparation
有权
纳米YAG:Ce荧光粉组合物及其制备方法
- Patent Title: Nano-YAG:Ce phosphor compositions and their methods of preparation
- Patent Title (中): 纳米YAG:Ce荧光粉组合物及其制备方法
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Application No.: US13417645Application Date: 2012-03-12
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Publication No.: US08414796B2Publication Date: 2013-04-09
- Inventor: Dejie Tao , Yi-Qun Li , Shifan Cheng
- Applicant: Dejie Tao , Yi-Qun Li , Shifan Cheng
- Applicant Address: US CA Fremont
- Assignee: Intematix Corporation
- Current Assignee: Intematix Corporation
- Current Assignee Address: US CA Fremont
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Agent David H. Jaffer
- Main IPC: C09K11/08
- IPC: C09K11/08

Abstract:
Disclosed herein are cerium doped, garnet phosphors emitting in the yellow region of the spectrum, and having the general formula (Y,A)3(Al,B)5(O,C)12:Ce3+, where A is Tb, Gd, Sm, La, Sr, Ba, Ca, and/or Mg, and substitutes for Y, B is Si, Ge, B, P, and/or Ga, and substitutes for Al, and C is F, Cl, N, and/or S, where C substitutes for O. Relative to a solid-state-reaction method, the instant co-precipitation methods provide a more homogeneous mixing environment to enhance the distribution of the Ce3+ activator in the YAG matrix. Such a uniform distribution has the benefit of an increased emission intensity. The primary particle size of the as-prepared phosphor is about 200 nm, with a narrow distribution.
Public/Granted literature
- US20120175557A1 NANO-YAG:CE PHOSPHOR COMPOSITIONS AND THEIR METHODS OF PREPARATION Public/Granted day:2012-07-12
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