公开(公告)号：US20130020930A1

公开(公告)日：2013-01-24

申请号：US13415623

申请日：2012-03-08

Applicant: Yi-Qun Li ,  Jingtao Gu ,  Zhankun Jia ,  Shifan Cheng

Inventor： Yi-Qun Li ,  Jingtao Gu ,  Zhankun Jia ,  Shifan Cheng

IPC: C09K11/86 ,  H01L33/50 ,  C09K11/80

CPC classification number: C09K11/7774 ,  C09K11/0883 ,  C09K11/7734 ,  H01L33/502 ,  H01L33/504

Abstract: Disclosed herein are yellow-green and yellow-emitting aluminate based phosphors for use in white LEDs, general lighting, and LED and backlighting displays. In one embodiment of the present invention, the cerium-activated, yellow-green to yellow-emitting aluminate phosphor comprises the rare earth lutetium, at least one alkaline earth metal, aluminum, oxygen, at least one halogen, and at least one rare earth element other than lutetium, wherein the phosphor is configured to absorb excitation radiation having a wavelength ranging from about 380 nm to about 480 nm, and to emit light having a peak emission wavelength ranging from about 550 nm to about 600 nm.

Abstract translation: 本文公开了用于白色LED，通用照明以及LED和背光显示器的黄绿色和黄色发射铝酸盐基磷光体。 在本发明的一个实施方案中，铈活化的黄绿色至黄色发射的铝酸盐荧光体包括稀土镥，至少一种碱土金属，铝，氧，至少一种卤素和至少一种稀土 除了镥之外的元素，其中磷光体被配置为吸收具有从约380nm至约480nm的波长的激发辐射，并且发射具有约550nm至约600nm的峰值发射波长的光。

公开(公告)号：US20120175557A1

公开(公告)日：2012-07-12

申请号：US13417645

申请日：2012-03-12

Applicant: Dejie Tao ,  Yi-Qun Li ,  Shifan Cheng

Inventor： Dejie Tao ,  Yi-Qun Li ,  Shifan Cheng

IPC: C09K11/80 ,  C09K11/81

CPC classification number: C09K11/7774 ,  C09K11/777 ,  F21K9/64 ,  F21V9/30

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07597817B1

公开(公告)日：2009-10-06

申请号：US10829590

申请日：2004-04-21

Applicant: Yi-Qun Li ,  Ning Wang ,  Qizhen Xue ,  Shifan Cheng ,  Xiao-Dong Xiang

Inventor： Yi-Qun Li ,  Ning Wang ,  Qizhen Xue ,  Shifan Cheng ,  Xiao-Dong Xiang

IPC: H01F1/03 ,  C01F11/00 ,  C01F17/00

CPC classification number: H01F1/407 ,  C01G23/006 ,  C01G49/0036 ,  C01G49/009 ,  C01G51/006 ,  C01G53/006 ,  C01P2002/34 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2006/42

Abstract: Novel metal oxide compositions are disclosed. These ferromagnetic or ferrimagnetic compositions have resitivities that vary between those of semiconducting and insulating materials, and they further exhibit Curie temperatures greater than room temperature (i.e., greater than 300 K). They are perovskite structures with the general chemical formulas (A1-xMx)BO3, (A1-xMx)(B′B″)O3 or A(B1-xMx)O3, where A can be a 1+, 2+ and 3+ charged ion; B can be a 5+, 4+, 3+ charged ion; B′ and B″ can be 2+, 3+, 4+, 5+ and 6+ charged ion. M is a magnetic ion dopant. X-ray diffraction patterns are presented for exemplary compositions.

Abstract translation: 公开了新的金属氧化物组合物。 这些铁磁性或亚铁磁性组合物具有在半导体材料和绝缘材料之间变化的灵敏度，并且它们还表现出高于室温（即大于300K）的居里温度。 它们是具有一般化学式（A1-xMx）BO3，（A1-xMx）（B'B“）O3或A（B1-xMx）O3的钙钛矿结构，其中A可以是1 +，2+和3 +带电离子; B可以是5+，4+，3+带电离子; B'和B“可以是2+，3+，4+，5+和6+带电离子。 M是磁离子掺杂剂。 呈现X射线衍射图案用于示例性组合物。

公开(公告)号：US20080111472A1

公开(公告)日：2008-05-15

申请号：US11786044

申请日：2007-04-09

Applicant: Shengfeng Liu ,  Shifan Cheng ,  Yi-Qun Li

Inventor： Shengfeng Liu ,  Shifan Cheng ,  Yi-Qun Li

IPC: H01J1/62

CPC classification number: C09K11/7792 ,  H05B33/14

Abstract: Novel aluminum-silicate based orange-red phosphors, with mixed di- and trivalent cations are disclosed. The phosphors have the formula (Sr1−x−yMxTy)3−mEum(Si1−zAlz)O5, where M is at least one of Ba, Mg, Ca, and Zn in an amount ranging from 0≦x≦0.4. T is a trivalent metal in an amount ranging from 0≦y≦0. This phosphor is configured to emit visible light having a peak emission wavelength greater than about 580 nm. The phosphors may contain a halogen anion such as F, Cl, and Br, at least some of which is substitutionally positioned on oxygen lattice sites. The present aluminum-silicate phosphors have applications in white and orange-red illumination systems, as well as plasma display panels.

Abstract translation: 公开了具有混合的二价和三价阳离子的新型硅酸铝基橙红色荧光体。 磷光体具有式（Sr 1-xy M x x x x x x x x>>>>>>>>>>>>>>>>>>>>> 其中M是Ba，Mg，Ca中的至少一种，其中M 1，Y 2，Z 3， 和范围为0 <= x <= 0.4的Zn。 T是0 <= y <= 0的量的三价金属。 该磷光体被配置为发射具有大于约580nm的峰值发射波长的可见光。 荧光体可以含有卤素阴离子如F，Cl和Br，其中至少一些取代位于氧格子位置上。 本发明的铝硅酸盐荧光体可用于白色和橙红色照明系统以及等离子体显示面板。

公开(公告)号：US20080073616A1

公开(公告)日：2008-03-27

申请号：US11900307

申请日：2007-09-10

Applicant: Yi Dong ,  Ning Wang ,  Shifan Cheng ,  Yi-Qun Li

Inventor： Yi Dong ,  Ning Wang ,  Shifan Cheng ,  Yi-Qun Li

IPC: C09K11/77

CPC classification number: C09K11/7734 ,  C09K11/592 ,  H01L33/502 ,  H01L33/504 ,  Y02B20/181

Abstract: Novel phosphor systems for a white LED are disclosed. The phosphor systems are excited by a non-visible to near-UV radiation source having an excitation wavelength ranging from about 250 to 420 nm. The phosphor system may comprise one phosphor, two phosphors, and may include optionally a third and even a fourth phosphor. In one embodiment of the present invention, the phosphor is a two phosphor system having a blue phosphor and a yellow phosphor, wherein the long wavelength end of the blue phosphor is substantially the same wavelength as the short wavelength end of the yellow phosphor. Alternatively, there may be a wavelength gap between the yellow and blue phosphors. The yellow phosphor may be phosphate or silicate-based, and the blue phosphor may be silicate or aluminate-based. Single phosphor systems excited by non-visible radiation are also disclosed. In other embodiments of present invention, a single phosphor is used to produce white light illumination, the single phosphor having a broad emission spectrum with a peak intensity ranging from about 520 to 560 nm.

Abstract translation: 公开了一种用于白色LED的新型荧光体系统。 磷光体系统由具有约250至420nm的激发波长的不可见至近紫外辐射源激发。 荧光体系统可以包括一个磷光体，两个磷光体，并且可以包括任选的第三和第四个磷光体。 在本发明的一个实施例中，荧光体是具有蓝色荧光体和黄色荧光体的二磷光体系，蓝色荧光体的长波长端与黄色荧光体的短波长端基本相同。 或者，黄色和蓝色荧光体之间可能存在波长间隙。 黄色磷光体可以是磷酸盐或硅酸盐，并且蓝色磷光体可以是硅酸盐或铝酸盐。 还公开了由不可见辐射激发的单个荧光体系统。 在本发明的其它实施例中，使用单个荧光体来产生白光照明，该单个荧光体具有宽的发射光谱，其峰强度范围为约520至560nm。

公开(公告)号：US20070295383A1

公开(公告)日：2007-12-27

申请号：US11731802

申请日：2007-03-30

Applicant: Yi-Qun Li ,  Wei Shan ,  Shifan Cheng ,  Mike Ko

Inventor： Yi-Qun Li ,  Wei Shan ,  Shifan Cheng ,  Mike Ko

IPC: H02N6/00

CPC classification number: H01L31/055 ,  C09K11/7734 ,  Y02E10/52

Abstract: The present embodiments are directed to photovoltaic devices that convert sunlight into electrical energy. More specifically, the present embodiments include a phosphor-containing, wavelength-converting material for shifting higher energy light to a lower energy form, the latter being more suitable for the typical solar cell to convert to electricity. The absorption of the phosphor may range from about 280 to 460 nm. Advantageously, the phosphor component of the wavelength converter may be in the form of nano-particles embedded in a transparent matrix for reducing scattering losses.

Abstract translation: 本实施例涉及将太阳光转换成电能的光伏器件。 更具体地，本实施例包括用于将较高能量的光转移到较低能量形式的含磷光体的波长转换材料，后者更适合于典型的太阳能电池转换为电。 磷光体的吸收可以在约280至460nm的范围内。 有利地，波长转换器的荧光体组分可以是嵌入透明基质中的纳米颗粒的形式，以减少散射损失。

公开(公告)号：US07267787B2

公开(公告)日：2007-09-11

申请号：US10912741

申请日：2004-08-04

Applicant: Yi Dong ,  Ning Wang ,  Shifan Cheng ,  Yi-Qun Li

Inventor： Yi Dong ,  Ning Wang ,  Shifan Cheng ,  Yi-Qun Li

IPC: H01L33/00

CPC classification number: C09K11/7734 ,  C09K11/592 ,  H01L33/502 ,  H01L33/504 ,  Y02B20/181

Abstract: Novel phosphor systems for a white LED are disclosed. The phosphor systems are excited by a non-visible to near-UV radiation source having an excitation wavelength ranging from about 250 to 420 nm. The phosphor system may comprise one phosphor, two phosphors, and may include optionally a third and even a fourth phosphor. In one embodiment of the present invention, the phosphor is a two phosphor system having a blue phosphor and a yellow phosphor, wherein the long wavelength end of the blue phosphor is substantially the same wavelength as the short wavelength end of the yellow phosphor. Alternatively, there may be a wavelength gap between the yellow and blue phosphors. The yellow phosphor may be phosphate or silicate-based, and the blue phosphor may be silicate or aluminate-based. Single phosphor systems excited by non-visible radiation are also disclosed. In other embodiments of present invention, a single phosphor is used to produce white light illumination, the single phosphor having a broad emission spectrum with a peak intensity ranging from about 520 to 560 nm.

Abstract translation: 公开了一种用于白色LED的新型荧光体系统。 磷光体系统由具有约250至420nm的激发波长的不可见至近紫外辐射源激发。 荧光体系统可以包括一个磷光体，两个磷光体，并且可以包括任选的第三和第四个磷光体。 在本发明的一个实施例中，荧光体是具有蓝色荧光体和黄色荧光体的二磷光体系，蓝色荧光体的长波长端与黄色荧光体的短波长端基本相同。 或者，黄色和蓝色荧光体之间可能存在波长间隙。 黄色磷光体可以是磷酸盐或硅酸盐，并且蓝色磷光体可以是硅酸盐或铝酸盐。 还公开了由不可见辐射激发的单个荧光体系统。 在本发明的其它实施例中，使用单个荧光体来产生白光照明，该单个荧光体具有宽的发射光谱，峰值强度范围为约520至560nm。

公开(公告)号：US20060027781A1

公开(公告)日：2006-02-09

申请号：US10912741

申请日：2004-08-04

Applicant: Yi Dong ,  Ning Wang ,  Shifan Cheng ,  Yi-Qun Li

Inventor： Yi Dong ,  Ning Wang ,  Shifan Cheng ,  Yi-Qun Li

IPC: C04B35/00 ,  C09K3/00 ,  G01N27/82 ,  H01F1/28

CPC classification number: C09K11/7734 ,  C09K11/592 ,  H01L33/502 ,  H01L33/504 ,  Y02B20/181

Abstract: Novel phosphor systems for a white LED are disclosed. The phosphor systems are excited by a non-visible to near-UV radiation source having an excitation wavelength ranging from about 250 to 420 nm. The phosphor system may comprise one phosphor, two phosphors, and may include optionally a third and even a fourth phosphor. In one embodiment of the present invention, the phosphor is a two phosphor system having a blue phosphor and a yellow phosphor, wherein the long wavelength end of the blue phosphor is substantially the same wavelength as the short wavelength end of the yellow phosphor. Alternatively, there may be a wavelength gap between the yellow and blue phosphors. The yellow phosphor may be phosphate or silicate-based, and the blue phosphor may be silicate or aluminate-based. Single phosphor systems excited by non-visible radiation are also disclosed. In other embodiments of present invention, a single phosphor is used to produce white light illumination, the single phosphor having a broad emission spectrum with a peak intensity ranging from about 520 to 560 nm.

Abstract translation: 公开了一种用于白色LED的新型荧光体系统。 磷光体系统由具有约250至420nm的激发波长的不可见至近紫外辐射源激发。 荧光体系统可以包括一个磷光体，两个磷光体，并且可以包括任选的第三和第四个磷光体。 在本发明的一个实施例中，荧光体是具有蓝色荧光体和黄色荧光体的二磷光体系，蓝色荧光体的长波长端与黄色荧光体的短波长端基本相同。 或者，黄色和蓝色荧光体之间可能存在波长间隙。 黄色磷光体可以是磷酸盐或硅酸盐，并且蓝色磷光体可以是硅酸盐或铝酸盐。 还公开了由不可见辐射激发的单个荧光体系统。 在本发明的其它实施例中，使用单个荧光体来产生白光照明，该单个荧光体具有宽的发射光谱，其峰强度范围为约520至560nm。

公开(公告)号：US08529791B2

公开(公告)日：2013-09-10

申请号：US13181226

申请日：2011-07-12

Applicant: Yusong Wu ,  Dejie Tao ,  Shifan Cheng ,  Yi-Qun Li

Inventor： Yusong Wu ,  Dejie Tao ,  Shifan Cheng ,  Yi-Qun Li

IPC: C09K11/02 ,  C09K11/08 ,  H01J1/62

CPC classification number: C09K11/7792 ,  C09K11/7734 ,  C09K11/7774 ,  F21K9/64 ,  F21Y2115/10 ,  H01J1/63 ,  Y02B20/181

Abstract: Disclosed herein are green-emitting, garnet-based phosphors having the formula (Lu1-a-b-cYaTbbAc)3(Al1-dBd)5(O1-eCe)12:Ce,Eu, where A is selected from the group consisting of Mg, Sr, Ca, and Ba; B is selected from the group consisting of Ga and In; C is selected from the group consisting of F, Cl, and Br; and 0≦a≦1; 0≦b≦1; 0

Abstract translation: 本文公开了具有式（Lu1-ab-cYaBbbAc）3（Al1-dBd）5（O1-eCe）12：Ce，Eu）的绿色发光的石榴石基荧光体，其中A选自Mg， Sr，Ca和Ba; B选自Ga和In; C选自F，Cl和Br; 和0 @ a @ 1; 0 @ b @ 1; 0

公开(公告)号：US08475683B2

公开(公告)日：2013-07-02

申请号：US13415623

申请日：2012-03-08

Applicant: Yi-Qun Li ,  Jingtao Gu ,  Zhankun Jia ,  Shifan Cheng

Inventor： Yi-Qun Li ,  Jingtao Gu ,  Zhankun Jia ,  Shifan Cheng

IPC: C09K11/02 ,  C09K11/08 ,  H01J1/62

CPC classification number: C09K11/7774 ,  C09K11/0883 ,  C09K11/7734 ,  H01L33/502 ,  H01L33/504

Abstract: Disclosed herein are yellow-green and yellow-emitting aluminate based phosphors for use in white LEDs, general lighting, and LED and backlighting displays. In one embodiment of the present invention, the cerium-activated, yellow-green to yellow-emitting aluminate phosphor comprises the rare earth lutetium, at least one alkaline earth metal, aluminum, oxygen, at least one halogen, and at least one rare earth element other than lutetium, wherein the phosphor is configured to absorb excitation radiation having a wavelength ranging from about 380 nm to about 480 nm, and to emit light having a peak emission wavelength ranging from about 550 nm to about 600 nm.

Abstract translation: 本文公开了用于白色LED，通用照明以及LED和背光显示器的黄绿色和黄色发射铝酸盐基磷光体。 在本发明的一个实施方案中，铈活化的黄绿色至黄色的铝酸盐荧光体包括稀土镥，至少一种碱土金属，铝，氧，至少一种卤素和至少一种稀土 除了镥之外的元素，其中磷光体被配置为吸收具有从约380nm至约480nm的波长的激发辐射，并且发射具有约550nm至约600nm的峰值发射波长的光。