Invention Grant
- Patent Title: Color stable red-emitting phosphors
- Patent Title (中): 颜色稳定的红色发光荧光粉
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Application No.: US14302823Application Date: 2014-06-12
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Publication No.: US09385282B2Publication Date: 2016-07-05
- Inventor: Anant Achyut Setlur , James Edward Murphy , Florencio Garcia , Ashfaqul Islam Chowdhury , Srinivas Prasad Sista
- Applicant: GENERAL ELECTRIC COMPANY
- Applicant Address: US NY Niskayuna
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Niskayuna
- Agent Mary Louise Stanford
- Main IPC: C09K11/61
- IPC: C09K11/61 ; H01L33/50
Abstract:
A process for synthesizing a Mn4+ doped phosphor includes contacting a precursor of formula I, Ax(M1−z,Mnz)Fy I at an elevated temperature with a fluorine-containing oxidizing agent in gaseous form to form the Mn4+ doped phosphor; wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7; and 0.03≦z≦0.10.
Public/Granted literature
- US20150364655A1 COLOR STABLE RED-EMITTING PHOSPHORS Public/Granted day:2015-12-17
Information query
