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公开(公告)号：US20190048258A1
公开(公告)日：2019-02-14
申请号：US15674495
申请日：2017-08-10
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Fangming Du , Clark David Nelson , Sara Anne Krosschell
Abstract: A process for preparing a population of coated phosphor particles is presented. The process includes combining particles of a phosphor of formula I: Ax[MFy]:Mn4+ with a first solution including a compound of formula II: Ax[MFy] to form a suspension, where 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 an absolute value of a charge of the [MFy] ion; and y is 5, 6 or 7. The process further includes combining a second solution including a source A+ ions with the suspension.
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