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公开(公告)号：US10131835B2
公开(公告)日：2018-11-20
申请号：US15109267
申请日：2014-12-16
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Anant Achyut Setlur , Robert Joseph Lyons , Prasanth Kumar Nammalwar , James Edward Murphy , Florencio Garcia , Ravikumar Hanumantha
Abstract: A phosphor composition is derived from combining K2SiF6:Mn4+ in solid form with a saturated solution of a manganese-free complex fluoride including a composition of formula I: A3[MF6], where A is selected from Na, K, Rb, and combinations thereof and M is selected from Al, Ga, In, Sc, Y, Gd, and combinations thereof. The composition of formula I: A3[MF6] has a water solubility lower than a water solubility of K2SiF6. A lighting apparatus including the phosphor composition is also provided.
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公开(公告)号：US20170145304A1
公开(公告)日：2017-05-25
申请号：US15402606
申请日：2017-01-10
Applicant: GENERAL ELECTRIC COMPANY
Inventor： James Edward Murphy , Anant Achyut Setlur , Florencio Garcia , Robert Joseph Lyons , Ashfaqul Islam Chowdhury , Nagaveni Karkada , Prasanth Kumar Nammalwar , William Winder Beers
CPC classification number: C09K11/617 , C08K3/34 , C09K11/025 , C09K11/616 , H01L33/502 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2924/181 , H01L2924/00014 , H01L2924/00012
Abstract: A lighting apparatus includes a semiconductor light source in direct contact with a polymer composite comprising a color stable Mn4+ doped phosphor, wherein the lighting apparatus has a color shift of 1.5 MacAdam ellipses after operating for at least 2,000 hour at a LED current density greater than 2 A/cm2, a LED wall-plug efficiency greater than 40%, and a board temperature greater than 25° C.
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公开(公告)号：US20140268655A1
公开(公告)日：2014-09-18
申请号：US14285746
申请日：2014-05-23
Applicant: GENERAL ELECTRIC COMPANY
Inventor： James Edward Murphy , Anant Achyut Setlur , Florencio Garcia , Robert Joseph Lyons , Ashfaqul Islam Chowdhury , Nagaveni Karkada , Prasanth Kumar Nammalwar
CPC classification number: C09K11/617 , C08K3/34 , C09K11/025 , C09K11/616 , H01L33/502 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2924/181 , H01L2924/00014 , H01L2924/00012
Abstract: A color stable Mn4+ doped phosphor of formula I, Ax[MFy]:Mn4+ I 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 wherein % intensity loss of the phosphor after exposure to light flux of at least 80 w/cm2 at a temperature of at least 50° C. for at least 21 hours is ≦4%.
Abstract translation: 式I的颜色稳定的Mn4 +掺杂的荧光体，Ax [MFy]：Mn4 + I，其中A是Li，Na，K，Rb，Cs或它们的组合; M是Si，Ge，Sn，Ti，Zr，Al，Ga，In，Sc，Hf，Y，La，Nb，Ta，Bi，Gd或它们的组合; x是[MFy]离子的电荷的绝对值; y为5,6或7; 并且其中在至少80℃的温度下暴露至少80w / cm 2的光通量至少21小时后的荧光粉的强度损失百分比为±4％。
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公开(公告)号：US20140264418A1
公开(公告)日：2014-09-18
申请号：US14208592
申请日：2014-03-13
Applicant: GENERAL ELECTRIC COMPANY
Inventor： James Edward Murphy , Anant Achyut Setlur , Florencio Garcia , Robert Joseph Lyons , Ashfaqul Islam Chowdhury , Nagaveni Karkada , Prasanth Kumar Nammalwar
CPC classification number: H01L33/502 , C09K11/616 , C09K2211/181 , C09K2211/188 , H01L33/52 , H01L2224/48091 , H01L2224/48247 , H01L2924/181 , H01L2924/00014 , H01L2924/00012
Abstract: A process for synthesizing a color stable Mn4+ doped phosphor includes contacting a precursor of formula I, in gaseous form at an elevated temperature with a fluorine-containing oxidizing agent to form the color stable Mn4+ doped phosphor Ax[MFy]:Mn4+ I whereinA is Li, Na, K, Rb, Cs, NR4 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;R is H, lower alkyl, or a combination thereof;x is the absolute value of the charge of the [MFy] ion; andy is 5, 6 or 7.
Abstract translation: 用于合成颜色稳定的Mn4 +掺杂荧光体的方法包括在高温下以气态形式将式I的前体与含氟氧化剂接触以形成颜色稳定的Mn4 +掺杂荧光体Ax [MFy]：Mn4 + I，其中A为 Li，Na，K，Rb，Cs，NR4或其组合; M是Si，Ge，Sn，Ti，Zr，Al，Ga，In，Sc，Hf，Y，La，Nb，Ta，Bi，Gd或它们的组合; R是H，低级烷基或它们的组合; x是[MFy]离子的电荷的绝对值; y为5,6或7。
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公开(公告)号：US20140231857A1
公开(公告)日：2014-08-21
申请号：US14348244
申请日：2012-09-20
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Prasanth Kumar Nammalwar , Digamber Gurudas Porob , Anant Achyut Setlur , Satya Kishore Manepalli
CPC classification number: C07D301/19 , C07C1/24 , C07C5/03 , C07C29/132 , C07C407/00 , C07C2601/14 , C09K11/617 , C09K11/7721 , C09K11/7734 , C09K11/7774 , C09K11/7792 , H01J61/44 , H01L33/502 , H01L2224/32245 , H01L2224/32257 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2224/49107 , H01L2224/73265 , H01L2224/8592 , H01L2924/181 , H01L2924/00014 , H01L2924/00012 , H01L2924/00
Abstract: A phosphor material is presented that includes a blend of a first phosphor, a second phosphor and a third phosphor. The first phosphor includes a composition having a general formula of RE2−yM1+yA2−yScySin-wGewO12+δ:Ce3+ wherein RE is selected from a lanthanide ion or Y3+, where M is selected from Mg, Ca, Sr or Ba, A is selected from Mg or Zn and where 0≦y≦2, 2.5≦n≦3.5, 0≦w≦1, and −1.5≦δ≦1.5. The second phosphor includes a complex fluoride doped with manganese (Mn4+), and the third phosphor include a phosphor composition having an emission peak in a range from about 520 nanometers to about 680 nanometers. A lighting apparatus including such a phosphor material is also presented. The light apparatus includes a light source in addition to the phosphor material.
Abstract translation: 提供了包括第一荧光体，第二荧光体和第三荧光体的共混物的荧光体材料。 第一荧光体包括具有通式为RE2-yM1 + yA2-yScySin-wGewO12 +δ：Ce3 +的组成，其中RE选自镧系元素离子或Y3 +，其中M选自Mg，Ca，Sr或Ba，A为 选自Mg或Zn，其中0＆nlE; y＆nlE; 2，2.5＆nlE; n＆nlE; 3.5,0和nlE; w＆nlE; 1和-1.5＆nlE;δ＆nlE; 第二荧光体包括掺杂有锰（Mn4 +）的复合氟化物，第三荧光体包括具有在约520纳米至约680纳米范围内的发射峰的磷光体组合物。 还提供了包括这种荧光体材料的照明装置。 光装置除了荧光体材料之外还包括光源。
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Patent Agency Ranking
公开(公告)号：US20160376499A1
公开(公告)日：2016-12-29
申请号：US15109267
申请日：2014-12-16
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Anant Achyut Setlur , Robert Joseph Lyons , Prasanth Kumar Nammalwar , James Edward Murphy , Florencio Garcia , Ravikumar Hanumantha
CPC classification number: C09K11/025 , C09K11/616 , C09K11/617 , H01L33/502 , H01L33/505 , H01L33/507 , H01L33/52 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2924/181 , H01L2924/00014 , H01L2924/00012
Abstract: A phosphor composition is derived from combining K2SiF6:Mn4+ in solid form with a saturated solution of a manganese-free complex fluoride including a composition of formula I:A3[MF6], where A is selected from Na, K, Rb, and combinations thereof and M is selected from Al, Ga, In, Sc, Y, Gd, and combinations thereof. The composition of formula I:A3[MF6] has a water solubility lower than a water solubility of K2SiF6. A lighting apparatus including the phosphor composition is also provided.
Abstract translation: 衍生自固体形式的K2SiF6：Mn4 +与包含式I：A3 [MF6]组成的无锰络合氟化物的饱和溶液的荧光体组合物，其中A选自Na，K，Rb及其组合 M选自Al，Ga，In，Sc，Y，Gd及其组合。 式I的组合物：A3 [MF6]的水溶解度低于K2SiF6的水溶性。 还提供了包括荧光体组合物的照明装置。
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公开(公告)号：US08906724B2
公开(公告)日：2014-12-09
申请号：US14311624
申请日：2014-06-23
Applicant: General Electric Company
Inventor： James Edward Murphy , Anant Achyut Setlur , Florencio Garcia , Robert Joseph Lyons , Ashfaqul Islam Chowdhury , Nagaveni Karkada , Prasanth Kumar Nammalwar
CPC classification number: H01L33/502 , C09K11/616 , C09K2211/181 , C09K2211/188 , H01L33/52 , H01L2224/48091 , H01L2224/48247 , H01L2924/181 , H01L2924/00014 , H01L2924/00012
Abstract: A process for synthesizing a color stable Mn4+ doped phosphor includes contacting a precursor of formula I, in gaseous form at an elevated temperature with a fluorine-containing oxidizing agent to form the color stable Mn4+ doped phosphor Ax[MFy]:Mn4+ I 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; and y is 5, 6 or 7.
Abstract translation: 用于合成颜色稳定的Mn4 +掺杂荧光体的方法包括在高温下以气态形式将式I的前体与含氟氧化剂接触以形成颜色稳定的Mn4 +掺杂荧光体Ax [MFy]：Mn4 + I，其中A为 Li，Na，K，Rb，Cs或其组合; M是Si，Ge，Sn，Ti，Zr，Al，Ga，In，Sc，Hf，Y，La，Nb，Ta，Bi，Gd或它们的组合; x是[MFy]离子的电荷的绝对值; y为5,6或7。
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公开(公告)号：US09611237B2
公开(公告)日：2017-04-04
申请号：US14348244
申请日：2012-09-20
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Prasanth Kumar Nammalwar , Digamber Gurudas Porob , Anant Achyut Setlur , Satya Kishore Manepalli
IPC: C09K11/61 , C09K11/79 , C09K11/80 , C09K11/59 , C09K11/64 , H01L33/50 , H01J61/44 , C07D301/19 , C09K11/77 , C07C1/24 , C07C5/03 , C07C29/132 , C07C407/00
CPC classification number: C07D301/19 , C07C1/24 , C07C5/03 , C07C29/132 , C07C407/00 , C07C2601/14 , C09K11/617 , C09K11/7721 , C09K11/7734 , C09K11/7774 , C09K11/7792 , H01J61/44 , H01L33/502 , H01L2224/32245 , H01L2224/32257 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2224/49107 , H01L2224/73265 , H01L2224/8592 , H01L2924/181 , H01L2924/00014 , H01L2924/00012 , H01L2924/00
Abstract: A phosphor material is presented that includes a blend of a first phosphor, a second phosphor and a third phosphor. The first phosphor includes a composition having a general formula of RE2−yM1+yA2−yScySin−wGewO12+δ:Ce3+ wherein RE is selected from a lanthanide ion or Y3+, where M is selected from Mg, Ca, Sr or Ba, A is selected from Mg or Zn and where 0≦y≦2, 2.5≦n≦3.5, 0≦w≦1, and −1.5≦δ≦1.5. The second phosphor includes a complex fluoride doped with manganese (Mn4+), and the third phosphor include a phosphor composition having an emission peak in a range from about 520 nanometers to about 680 nanometers. A lighting apparatus including such a phosphor material is also presented. The light apparatus includes a light source in addition to the phosphor material.
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公开(公告)号：US09580648B2
公开(公告)日：2017-02-28
申请号：US14285746
申请日：2014-05-23
Applicant: GENERAL ELECTRIC COMPANY
Inventor： James Edward Murphy , Anant Achyut Setlur , Florencio Garcia , Robert Joseph Lyons , Ashfaqul Islam Chowdhury , Nagaveni Karkada , Prasanth Kumar Nammalwar
CPC classification number: C09K11/617 , C08K3/34 , C09K11/025 , C09K11/616 , H01L33/502 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2924/181 , H01L2924/00014 , H01L2924/00012
Abstract: A color stable Mn4+ doped phosphor of formula I, Ax[MFy]:Mn4+ I 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 wherein % intensity loss of the phosphor after exposure to light flux of at least 80 w/cm2 at a temperature of at least 50° C. for at least 21 hours is ≦4%.
Abstract translation: 式I的颜色稳定的Mn4 +掺杂的荧光体，Ax [MFy]：Mn4 + I，其中A是Li，Na，K，Rb，Cs或它们的组合; M是Si，Ge，Sn，Ti，Zr，Al，Ga，In，Sc，Hf，Y，La，Nb，Ta，Bi，Gd或它们的组合; x是[MFy]离子的电荷的绝对值; y为5,6或7; 并且其中在至少80℃的温度下暴露至少80w / cm 2的光通量至少21小时后的荧光粉的强度损失百分比为±4％。
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公开(公告)号：US09698314B2
公开(公告)日：2017-07-04
申请号：US14208592
申请日：2014-03-13
Applicant: GENERAL ELECTRIC COMPANY
Inventor： James Edward Murphy , Anant Achyut Setlur , Florencio Garcia , Robert Joseph Lyons , Ashfaqul Islam Chowdhury , Nagaveni Karkada , Prasanth Kumar Nammalwar
CPC classification number: H01L33/502 , C09K11/616 , C09K2211/181 , C09K2211/188 , H01L33/52 , H01L2224/48091 , H01L2224/48247 , H01L2924/181 , H01L2924/00014 , H01L2924/00012
Abstract: A process for synthesizing a color stable Mn4+ doped phosphor includes contacting a precursor of formula I, in gaseous form at an elevated temperature with a fluorine-containing oxidizing agent to form the color stable Mn4+ doped phosphor Ax[MFy]:Mn4+ I wherein A is Li, Na, K, Rb, Cs, NR4 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; R is H, lower alkyl, 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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