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    PHOSPHOR ASSEMBLY FOR LIGHT EMITTING DEVICES
    12.
    发明申请
    PHOSPHOR ASSEMBLY FOR LIGHT EMITTING DEVICES 审中-公开
    磷光体组件用于发光装置

    公开(公告)号：US20140327023A1

    公开(公告)日：2014-11-06

    申请号：US13875534

    申请日：2013-05-02

    Applicant: General Electric Company

    Inventor： Megan Marie Brewster ,  Anant Achyut Setlur ,  Robert Joseph Lyons ,  James Edward Murphy ,  Florencio Garcia

    IPC: H01L33/50

    CPC classification number: H01L33/504 ,  C09K11/617 ,  C09K11/7721 ,  C09K11/7734 ,  C09K11/7774 ,  H01L33/507 ,  H01L2224/48247 ,  H01L2224/48257 ,  H05B33/10

    Abstract: A method for fabricating a light emitting device is disclosed. The light emitting device includes a light emitting diode (LED). The method includes disposing a layered phosphor composite or a thick phosphor composite radiationally coupled to the LED to form a light emitting device. The layered phosphor composite includes a first phosphor layer including a yellow-emitting phosphor over a second phosphor layer including manganese-doped potassium fluorosilicate (PFS). The second phosphor layer is disposed closer to the LED. The mass of the PFS of this light emitting device is at least 15% less than mass of the PFS in a reference light emitting device that has the same color temperature as the above mentioned light emitting device, but includes a blend of PFS and the yellow emitting phosphor instead of a layered configuration or has a decreased thickness.

    Abstract translation: 公开了一种制造发光器件的方法。 发光器件包括发光二极管（LED）。 该方法包括设置辐射耦合到LED以形成发光器件的层状磷光体复合物或厚荧光粉复合物。 层状磷光体复合体包括在包含锰掺杂的氟硅酸钾（PFS）的第二磷光体层上包括黄色发射磷光体的第一荧光体层。 第二荧光体层设置得更靠近LED。 该发光器件的PFS质量比具有与上述发光器件相同色温的参考发光器件中的PFS质量小至少15％，但包括PFS与黄色 而不是层状构造，或者具有减小的厚度。

    COATED MANGANESE DOPED PHOSPHORS
    13.
    发明申请
    COATED MANGANESE DOPED PHOSPHORS 审中-公开

    公开(公告)号：US20190136128A1

    公开(公告)日：2019-05-09

    申请号：US16306309

    申请日：2017-06-27

    Applicant: General Electric Company

    Inventor： James Edward Murphy ,  Florencio Garcia

    IPC: C09K11/02 ,  C09K11/61 ,  H01L33/50

    Abstract: A population of coated phosphor particles is presented. Each coated phosphor particle has a core including a Mn4+ doped phosphor and a shell including aluminum oxide, titanium oxide, zirconium oxide, zinc oxide, tin oxide, silicon dioxide, hafnium oxide, indium oxide, indium tin oxide, potassium fluoride, titanium nitride, boron nitride, silicon nitride, a polymer material, or a combination thereof. A process for preparing the population of coated phosphor particles is also presented.

    Color stable red-emitting phosphors
    16.
    发明授权
    Color stable red-emitting phosphors 有权
    颜色稳定的红色发光荧光粉

    公开(公告)号：US09371481B2

    公开(公告)日：2016-06-21

    申请号：US14302907

    申请日：2014-06-12

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Florencio Garcia ,  Anant Achyut Setlur ,  James Edward Murphy ,  Srinivas Prasad Sista

    IPC: C09K11/61 ,  H05B33/12

    CPC classification number: C09K11/617 ,  C09K11/616 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2924/181 ,  H05B33/12 ,  H01L2924/00012

    Abstract: A process for synthesizing a Mn4+ doped phosphor includes contacting a precursor of formula I, Ax[MFy]:Mn4+   I at any temperature in a range from about 200° C. to about 700° C. with a fluorine-containing oxidizing agent in gaseous form; maintaining the temperature during a contact period of at least one hour; and, after the contact period, reducing the temperature at a rate of ≦5° C. per minute; 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.

    Abstract translation: 用于合成Mn4 +掺杂荧光体的方法包括在约200℃至约700℃的任何温度下将含有式I的前体Ax [MFy]：Mn4 + I与气态的含氟氧化剂 形成; 在接触期间保持至少1小时的温度; 并且在接触期后以每分钟5℃的速度降低温度; 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是5,6或7。

    COLOR STABLE RED-EMITTING PHOSPHORS
    17.
    发明申请
    COLOR STABLE RED-EMITTING PHOSPHORS 有权
    颜色稳定的红色发光磷光体

    公开(公告)号：US20150361336A1

    公开(公告)日：2015-12-17

    申请号：US14302907

    申请日：2014-06-12

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Florencio Garcia ,  Anant Achyut Setlur ,  James Edward Murphy ,  Srinivas Prasad Sista

    IPC: C09K11/61 ,  H05B33/12

    CPC classification number: C09K11/617 ,  C09K11/616 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2924/181 ,  H05B33/12 ,  H01L2924/00012

    Abstract: A process for synthesizing a Mn4+ doped phosphor includes contacting a precursor of formula I, Ax[MFy]:Mn4+  I at any temperature in a range from about 200° C. to about 700° C. with a fluorine-containing oxidizing agent in gaseous form; maintaining the temperature during a contact period of at least one hour; and, after the contact period, reducing the temperature at a rate of ≦5° C. per minute; 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.

    Abstract translation: 用于合成Mn4 +掺杂荧光体的方法包括在约200℃至约700℃的任何温度下将含有式I的前体Ax [MFy]：Mn4 + I与气态的含氟氧化剂 形成; 在接触期间保持至少1小时的温度; 并且在接触期后以每分钟5℃的速度降低温度; 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是5,6或7。

    LED PACKAGE WITH RED-EMITTING PHOSPHORS
    18.
    发明申请
    LED PACKAGE WITH RED-EMITTING PHOSPHORS 审中-公开
    LED包装与红色发光磷光体

    公开(公告)号：US20150123153A1

    公开(公告)日：2015-05-07

    申请号：US14073141

    申请日：2013-11-06

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Anant Achyut Setlur ,  James Edward Murphy ,  Florencio Garcia

    IPC: H01L33/50 ,  H01L33/00

    CPC classification number: H01L33/502 ,  C09K11/617 ,  H01L33/005 ,  H01L33/504 ,  H01L33/508 ,  H01L2933/0066

    Abstract: A process for fabricating an LED lighting apparatus comprising a color stable Mn4+ doped phosphor of formula I includes forming on a surface of an LED chip a polymer composite layer comprising a first and a second population of particles of the phosphor of formula I having a graded composition varying in manganese concentration across a thickness thereof; Ax(M,Mn)Fy  (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. The first population of particles has a lower manganese concentration than the second population of particles, and the manganese concentration in the polymer composite layer ranges from a minimum value in a region of the polymer composite layer proximate to the LED chip to a maximum value in a region opposite to the LED chip.

    Abstract translation: 一种用于制造LED照明装置的方法，包括具有式I的颜色稳定的Mn4 +掺杂磷光体包括在LED芯片的表面上形成聚合物复合层，所述聚合物复合层包含具有梯度组成的式I的磷光体的第一和第二群粒子 锰浓度在其厚度上变化; Ax（M，Mn）Fy（I）其中A是Li，Na，K，Rb，Cs，NR4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; 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; 并且y为5,6或7.第一群粒子的锰浓度低于第二群粒子，并且聚合物复合层中的锰浓度范围为聚合物复合层的接近于 LED芯片在与LED芯片相对的区域中达到最大值。

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