利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

22 条记录 (耗时 0.02 秒)

    NITRIDE-BASED RED PHOSPHORS
    1.
    发明申请
    NITRIDE-BASED RED PHOSPHORS 审中-公开
    基于硝酸的红色磷光体

    公开(公告)号：US20090283721A1

    公开(公告)日：2009-11-19

    申请号：US12250400

    申请日：2008-10-13

    申请人： Shengfeng Liu ,  Dejie Tao ,  Xianglong Yuan ,  Yi-Qun Li

    发明人： Shengfeng Liu ,  Dejie Tao ,  Xianglong Yuan ,  Yi-Qun Li

    IPC分类号： C09K11/85

    CPC分类号： C09K11/0883 ,  C09K11/7734 ,  Y02B20/181

    摘要： Embodiments of the present invention are directed to the fluorescence of a nitride-based deep red phosphor having at least one of the following novel features: 1) an oxygen content less than about 2 percent by weight, and 2) a halogen content. Such phosphors are particularly useful in the white light illumination industry, which utilizes the so-called “white LED.” The selection and use of a rare earth halide as a raw material source of not only the activator for the phosphor, but also the halogen, is a key feature of the present embodiments. The present phosphors have the general formula MaMbBC(N,D):Eu2+, where Ma is a divalent alkaline earth metal such as Mg, Ca, Sr, Ba; Mb is a trivalent metal such as Al, Ga, Bi, Y, La, and Sm; and Mc is a tetravalent element such as Si, Ge, P, and B; N is nitrogen, and D is a halogen such as F, Cl, or Br. An exemplary compound is CaAlSi(N1-xFx): Eu2+.

    摘要翻译： 本发明的实施方案涉及具有以下新颖特征中的至少一个的氮化物基深红色荧光体的荧光：1）氧含量小于约2重量％，和2）卤素含量。 这种荧光体在白光照明工业中是特别有用的，其利用了所谓的“白光LED”。 稀土卤化物作为磷光体的活化剂以及卤素的原料来源的选择和使用是本实施方案的关键特征。 本发明的荧光体具有通式MaMbBC（N，D）：Eu2 +，其中Ma是Mg，Ca，Sr，Ba等二价碱土金属; Mb是诸如Al，Ga，Bi，Y，La和Sm的三价金属; 并且Mc是四价元素如Si，Ge，P和B; N是氮，D是卤素如F，Cl或Br。 示例性化合物是CaAlSi（N1-xFx）：Eu2 +。

    Nitride-based, red-emitting phosphors
    2.
    发明授权
    Nitride-based, red-emitting phosphors 有权
    基于氮化物的红色发光荧光体

    公开(公告)号：US08274215B2

    公开(公告)日：2012-09-25

    申请号：US12632550

    申请日：2009-12-07

    申请人： Shengfeng Liu ,  Dejie Tao ,  Xianglong Yuan ,  Yi-Qun Li

    发明人： Shengfeng Liu ,  Dejie Tao ,  Xianglong Yuan ,  Yi-Qun Li

    IPC分类号： H01J1/62

    CPC分类号： C09K11/7734 ,  C04B35/58 ,  C04B35/581 ,  C04B35/584 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3286 ,  C04B2235/3409 ,  C04B2235/3852 ,  C04B2235/3865 ,  C04B2235/3873 ,  C04B2235/3895 ,  C04B2235/444 ,  C04B2235/445 ,  C04B2235/723 ,  C09K11/0883 ,  F21V9/30 ,  F21Y2115/10 ,  H05B33/12 ,  Y02B20/181

    摘要： Embodiments of the present invention are directed to nitride-based, red-emitting phosphors in red, green, and blue (RGB) lighting systems, which in turn may be used in backlighting displays and warm white-light applications. In particular embodiments, the red-emitting phosphor is based on CaAlSiN3 type compounds activated with divalent europium. In one embodiment, the nitride-based, red emitting compound contains a solid solution of calcium and strontium compounds (Ca,Sr)AlSiN3:Eu2+, wherein the impurity oxygen content is less than about 2 percent by weight. In another embodiment, the (Ca,Sr)AlSiN3:Eu2+ compounds further contains a halogen in an amount ranging from about zero to about 2 atomic percent, where the halogen may be fluorine (F), chlorine (Cl), or any combination thereof. In one embodiment at least half of the halogen is distributed on 2-fold coordinated nitrogen (N2) sites relative to 3-fold coordinated nitrogen (N3) sites.

    摘要翻译： 本发明的实施例涉及红色，绿色和蓝色（RGB）照明系统中的基于氮化物的红色发光荧光体，其又可用于背光显示器和暖白光应用。 在具体实施方案中，红色发光荧光体基于用二价铕活化的CaAlSiN 3型化合物。 在一个实施方案中，基于氮化物的红色发射化合物含有钙和锶化合物（Ca，Sr）AlSiN 3：Eu 2+的固溶体，其中杂质氧含量小于约2重量％。 在另一个实施方案中，（Ca，Sr）AlSiN 3：Eu 2+化合物还含有量为约0至约2原子％的卤素，其中卤素可以是氟（F），氯（Cl）或其任何组合 。 在一个实施方案中，至少一半的卤素相对于3倍配位的氮（N 3）位点分布在2倍配位的氮（N 2）位点上。

    Nano-YAG:Ce phosphor compositions and their methods of preparation
    4.
    发明授权
    Nano-YAG:Ce phosphor compositions and their methods of preparation 有权
    纳米YAG：Ce荧光粉组合物及其制备方法

    公开(公告)号：US08414796B2

    公开(公告)日：2013-04-09

    申请号：US13417645

    申请日：2012-03-12

    申请人： Dejie Tao ,  Yi-Qun Li ,  Shifan Cheng

    发明人： Dejie Tao ,  Yi-Qun Li ,  Shifan Cheng

    IPC分类号： C09K11/08

    CPC分类号： C09K11/7774 ,  C09K11/777 ,  F21K9/64 ,  F21V9/30

    摘要： Disclosed herein are cerium doped, garnet phosphors emitting in the yellow region of the spectrum, and having the general formula (Y,A)3(Al,B)5(O,C)12:Ce3+, where A is Tb, Gd, Sm, La, Sr, Ba, Ca, and/or Mg, and substitutes for Y, B is Si, Ge, B, P, and/or Ga, and substitutes for Al, and C is F, Cl, N, and/or S, where C substitutes for O. Relative to a solid-state-reaction method, the instant co-precipitation methods provide a more homogeneous mixing environment to enhance the distribution of the Ce3+ activator in the YAG matrix. Such a uniform distribution has the benefit of an increased emission intensity. The primary particle size of the as-prepared phosphor is about 200 nm, with a narrow distribution.

    摘要翻译： 本发明公开了在光谱黄色区域发射的具有通式（Y，A）3（Al，B）5（O，C）12：Ce 3+）的铈掺杂石榴石荧光体，其中A为Tb，Gd， Sm，La，Sr，Ba，Ca和/或Mg，并且代替Y，B是Si，Ge，B，P和/或Ga，并代替Al，C是F，Cl，N和 /或S，其中C代替O.相对于固态反应方法，即时共沉淀法提供更均匀的混合环境以增强Ce 3+活化剂在YAG基质中的分布。 这种均匀分布具有增加的发射强度的益处。 所制备的磷光体的一次粒径为约200nm，分布窄。

    NANO-YAG:CE PHOSPHOR COMPOSITIONS AND THEIR METHODS OF PREPARATION
    5.
    发明申请
    NANO-YAG:CE PHOSPHOR COMPOSITIONS AND THEIR METHODS OF PREPARATION 有权
    NANO-YAG：CE磷化合物及其制备方法

    公开(公告)号：US20120175557A1

    公开(公告)日：2012-07-12

    申请号：US13417645

    申请日：2012-03-12

    申请人： Dejie Tao ,  Yi-Qun Li ,  Shifan Cheng

    发明人： Dejie Tao ,  Yi-Qun Li ,  Shifan Cheng

    IPC分类号： C09K11/80 ,  C09K11/81

    CPC分类号： C09K11/7774 ,  C09K11/777 ,  F21K9/64 ,  F21V9/30

    摘要： Disclosed herein are cerium doped, garnet phosphors emitting in the yellow region of the spectrum, and having the general formula (Y,A)3(Al,B)5(O,C)12:Ce3+, where A is Tb, Gd, Sm, La, Sr, Ba, Ca, and/or Mg, and substitutes for Y, B is Si, Ge, B, P, and/or Ga, and substitutes for Al, and C is F, Cl, N, and/or S, where C substitutes for O. Relative to a solid-state-reaction method, the instant co-precipitation methods provide a more homogeneous mixing environment to enhance the distribution of the Ce3+ activator in the YAG matrix. Such a uniform distribution has the benefit of an increased emission intensity. The primary particle size of the as-prepared phosphor is about 200 nm, with a narrow distribution.

    摘要翻译： 本发明公开了在光谱黄色区域发射的具有通式（Y，A）3（Al，B）5（O，C）12：Ce 3+）的铈掺杂石榴石荧光体，其中A为Tb，Gd， Sm，La，Sr，Ba，Ca和/或Mg，并且代替Y，B是Si，Ge，B，P和/或Ga，并代替Al，C是F，Cl，N和 /或S，其中C代替O.相对于固态反应方法，即时共沉淀法提供更均匀的混合环境以增强Ce 3+活化剂在YAG基质中的分布。 这种均匀分布具有增加的发射强度的益处。 所制备的磷光体的一次粒径为约200nm，分布窄。

    Europium-activated, beta-SiAlON based green phosphors
    7.
    发明授权
    Europium-activated, beta-SiAlON based green phosphors 有权
    铕活化，β-SiAlON基绿色荧光体

    公开(公告)号：US08852455B2

    公开(公告)日：2014-10-07

    申请号：US13210667

    申请日：2011-08-16

    申请人： Yi-Qun Li ,  Dejie Tao

    发明人： Yi-Qun Li ,  Dejie Tao

    IPC分类号： C09K11/61 ,  C09K11/08 ,  C09K11/77

    CPC分类号： C09K11/7734

    摘要： Embodiments of the present invention are directed a β-SiAlON:Eu2+based green emitting phosphor having the formula Eux(A1)6−z(A2)zOyN8−z(A3)2(x+z−y), where 0

    摘要翻译： 本发明的实施方案涉及具有式Eux（A1）6-z（A2）zOyN8-z（A3）2（x + z-y）的基于SiAlON：Eu 2+的绿色发光荧光体，其中0 < z＆nlE; 4.2; 0＆nlE; y＆nlE; z; 0

    Europium-activated, Beta-SiAlON Based Green Phosphors
    8.
    发明申请
    Europium-activated, Beta-SiAlON Based Green Phosphors 有权
    铕激活，β-SiAlON基绿色荧光粉

    公开(公告)号：US20120043503A1

    公开(公告)日：2012-02-23

    申请号：US13210667

    申请日：2011-08-16

    申请人： Yi-Qun Li ,  Dejie Tao

    发明人： Yi-Qun Li ,  Dejie Tao

    IPC分类号： C09K11/79

    CPC分类号： C09K11/7734

    摘要： Embodiments of the present invention are directed a β-SiAlON:Eu2+ based green emitting phosphor having the formula Eux(A1)6−z(A2)zOyN8−z(A3)2(x+z−y), where 0

    摘要翻译： 本发明的实施方案涉及具有式Eux（A1）6-z（A2）zOyN8-z（A3）2（x + z-y）的基于SiAlON：Eu 2+的绿色发光荧光体，其中0

    Silicate-based green phosphors
    9.
    发明申请
    Silicate-based green phosphors 有权
    硅酸盐绿色荧光粉

    公开(公告)号：US20060145123A1

    公开(公告)日：2006-07-06

    申请号：US11269953

    申请日：2005-11-08

    申请人： Yi-Qun Li ,  Yi Dong ,  Dejie Tao ,  Shifan Cheng ,  Ning Wang

    发明人： Yi-Qun Li ,  Yi Dong ,  Dejie Tao ,  Shifan Cheng ,  Ning Wang

    IPC分类号： H01L33/00 ,  C09K11/08

    CPC分类号： C09K11/7734 ,  C09K11/7737 ,  H01L33/502

    摘要： Novel green phosphors are disclosed having the comprise silicate-based compounds having the formula (Sr,A1)x(Si,A2)(O,A3)2+x:Eu2+, where A1 is at least one divalent cation (a 2+ ion) including Mg, Ca, Ba, or Zn, or a combination of 1+ and 3+ cations; A2 is a 3+, 4+, or 5+ cation, including at least one of B, Al, Ga, C, Ge, N, and P; A3 is a 1−, 2−, or 3− anion, including F, Cl, Br, and S; and x is any value between 1.5 and 2.5, both inclusive. The formula is written to indicate that the A1 cation replaces Sr; the A2 cation replaces Si, and the A3 anion replaces O. These green phosphors are configured to emit visible light having a peak emission wavelength greater than about 480 nm. They have applications in green illumination systems, red-green-blue backlighting systems, white LEDs, and plasma display panels (PDPs).

    摘要翻译： 公开了新的绿色荧光体，其具有包含具有式（Sr，A 1 H 2）x Si（Si，Al 2）的硅酸盐基化合物 O，A 3 + 2 + x 2：Eu 2+，其中A 1至少是一个二价阳离子 （2+离子），包括Mg，Ca，Ba或Zn，或1+和3+阳离子的组合; A 2是3+，4+或5+阳离子，包括B，Al，Ga，C，Ge，N和P中的至少一种; A 3是1-，2-或3-阴离子，包括F，Cl，Br和S; x是1.5到2.5之间的任何值，包括两者之间的值。 该公式被写为表示A 1阳离子取代Sr; A 2阳离子取代Si，并且A 3 N阴离子取代O.这些绿色磷光体被配置为发射具有大于约480nm的峰值发射波长的可见光。 它们在绿色照明系统，红绿蓝色背光系统，白色LED和等离子显示面板（PDP）中都有应用。

    Nano-YAG:Ce phosphor compositions and their methods of preparation
    10.
    发明授权
    Nano-YAG:Ce phosphor compositions and their methods of preparation 有权
    纳米YAG：Ce荧光粉组合物及其制备方法

    公开(公告)号：US08133461B2

    公开(公告)日：2012-03-13

    申请号：US11975356

    申请日：2007-10-18

    申请人： Dejie Tao ,  Yi-Qun Li ,  Shifan Cheng

    发明人： Dejie Tao ,  Yi-Qun Li ,  Shifan Cheng

    IPC分类号： C01F17/00

    CPC分类号： C09K11/7774 ,  C09K11/777 ,  F21K9/64 ,  F21V9/30

    摘要： Disclosed herein are cerium doped, garnet phosphors emitting in the yellow region of the spectrum, and having the general formula (Y,A)3(Al,B)5(O,C)12:Ce3+, where A is Tb, Gd, Sm, La, Sr, Ba, Ca, and/or Mg, and substitutes for Y, B is Si, Ge, B, P, and/or Ga, and substitutes for Al, and C is F, Cl, N, and/or S, where C substitutes for O. Relative to a solid-state-reaction method, the instant co-precipitation methods provide a more homogeneous mixing environment to enhance the distribution of the Ce3+ activator in the YAG matrix. Such a uniform distribution has the benefit of an increased emission intensity. The primary particle size of the as-prepared phosphor is about 200 nm, with a narrow distribution.

    摘要翻译： 本发明公开了在光谱黄色区域发射的具有通式（Y，A）3（Al，B）5（O，C）12：Ce 3+）的铈掺杂石榴石荧光体，其中A为Tb，Gd， Sm，La，Sr，Ba，Ca和/或Mg，并且代替Y，B是Si，Ge，B，P和/或Ga，并代替Al，C是F，Cl，N和 /或S，其中C代替O.相对于固态反应方法，即时共沉淀法提供更均匀的混合环境以增强Ce 3+活化剂在YAG基质中的分布。 这种均匀分布具有增加的发射强度的益处。 所制备的磷光体的一次粒径为约200nm，分布窄。