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公开(公告)号：US10954438B2
公开(公告)日：2021-03-23
申请号：US15574539
申请日：2015-05-18
IPC分类号： C09K11/64 , H01L33/50 , C09K11/61 , C09K11/67 , C09K11/69 , C09K11/62 , C09K11/77 , G02F1/1335 , G02F1/13357
摘要： Synthesizing a color stable Mn4+ doped phosphor by contacting a gaseous fluorine-containing oxidizing agent with a precursor of: AaBbCcDdXx:Mn4+; AaiBbiCciDdXxYd:Mn4+; A13G2−m−nMnmMgnLi3F12Op; or AZF4:Mn4+. Where A is Li, Na, K, Rb, Cs, or a combination; B is Be, Mg, Ca, Sr, Ba, or a combination; C is Sc, Y, B, Al, Ga, In, Tl, or a combination; D is Ti, Zr, Hf, Rf, Si, Ge, Sn, Pb, or a combination; X is F or a combination of F and one of Br, Cl, and I; Y is O, or a combination of O and one of S and Se; A1 is Na or K, or a combination; G is Al, B, Sc, Fe, Cr, Ti, In, or a combination; Z is La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, Y, In, or a combination.
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2.发明授权公开(公告)号：US11952521B2
公开(公告)日：2024-04-09
申请号：US17516878
申请日：2021-11-02
IPC分类号： C09K11/02 , C09K11/61 , C09K11/66 , H01L33/50 , F21V8/00 , H01L33/48 , H01L33/60 , H01L33/62
CPC分类号： C09K11/617 , C09K11/025 , C09K11/616 , H01L33/502 , G02B6/0073 , H01L33/483 , H01L33/60 , H01L33/62
摘要： A process for preparing a Mn+4 doped phosphor of formula I
Ax[MFy]:Mn+4 I
includes combining a first solution comprising a source of A and a second solution comprising H2MF6 in the presence of a source of Mn, to form the Mn+4 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, 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
wherein a value of a Hammett acidity function of the first solution is at least −0.9.
Particles produced by the process may have a particle size distribution with a D50 particle size of less than 10 μm.-
3.发明申请公开(公告)号：US20220056336A1
公开(公告)日：2022-02-24
申请号：US17516878
申请日：2021-11-02
摘要： A process for preparing a Mn+4 doped phosphor of formula I Ax[MFy]:Mn+4 I includes combining a first solution comprising a source of A and a second solution comprising H2MF6 in the presence of a source of Mn, to form the Mn+4 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, 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 wherein a value of a Hammett acidity function of the first solution is at least −0.9. Particles produced by the process may have a particle size distribution with a D50 particle size of less than 10 μm.
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4.发明授权公开(公告)号：US11193059B2
公开(公告)日：2021-12-07
申请号：US15829878
申请日：2017-12-02
IPC分类号： C09K11/61 , C09K11/66 , C09K11/62 , C09K11/64 , H01L33/50 , C09K11/02 , H01L33/60 , F21V8/00 , H01L33/62 , H01L33/48
摘要： A process for preparing a Mn+4 doped phosphor of formula I Ax[MFy]:Mn+4 I includes combining a first solution comprising a source of A and a second solution comprising H2MF6 in the presence of a source of Mn, to form the Mn+4 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, 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 wherein a value of a Hammett acidity function of the first solution is at least −0.9. Particles produced by the process may have a particle size distribution with a D50 particle size of less than 10 μm.
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公开(公告)号：US20210130685A9
公开(公告)日：2021-05-06
申请号：US15965819
申请日：2018-04-27
IPC分类号： C09K11/61
摘要： A process for preparing a Mn+4 doped phosphor of formula I Ax[MFy]:Mn+4 I includes gradually adding a first solution to a second solution gradually discharging the product liquor from the reactor while volume of the product liquor in the reactor remains constant; wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, 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. The first solution includes a source of M and HF and the second solution includes a source of Mn to a reactor in the presence of a source of A.
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公开(公告)号：US10793773B2
公开(公告)日：2020-10-06
申请号：US15709557
申请日：2017-09-20
发明人： Fangming Du , James Edward Murphy , Srinivas Prasad Sista , Clark David Nelson , Jenna Marie Baldesare
摘要： A process for preparing a Mn+4 doped phosphor of formula I includes gradually adding a first solution comprising a source of M and HF and a second solution comprising a source of Mn to a reactor, in the presence of a source of A and an anion selected from phosphate, sulfate, acetate, and combinations thereof, to form a product liquor comprising the Mn+4 doped phosphor. The process also includes gradually discharging the product liquor from the reactor while volume of the product liquor in the reactor remains constant. A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; and y is 5, 6 or 7.
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