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公开(公告)号：US20080073616A1
公开(公告)日：2008-03-27
申请号：US11900307
申请日：2007-09-10
申请人： Yi Dong , Ning Wang , Shifan Cheng , Yi-Qun Li
发明人： Yi Dong , Ning Wang , Shifan Cheng , Yi-Qun Li
IPC分类号： C09K11/77
CPC分类号： C09K11/7734 , C09K11/592 , H01L33/502 , H01L33/504 , Y02B20/181
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07267787B2
公开(公告)日：2007-09-11
申请号：US10912741
申请日：2004-08-04
申请人： Yi Dong , Ning Wang , Shifan Cheng , Yi-Qun Li
发明人： Yi Dong , Ning Wang , Shifan Cheng , Yi-Qun Li
IPC分类号： H01L33/00
CPC分类号： C09K11/7734 , C09K11/592 , H01L33/502 , H01L33/504 , Y02B20/181
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20060027781A1
公开(公告)日：2006-02-09
申请号：US10912741
申请日：2004-08-04
申请人： Yi Dong , Ning Wang , Shifan Cheng , Yi-Qun Li
发明人： Yi Dong , Ning Wang , Shifan Cheng , Yi-Qun Li
CPC分类号： C09K11/7734 , C09K11/592 , H01L33/502 , H01L33/504 , Y02B20/181
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US07311858B2
公开(公告)日：2007-12-25
申请号：US10948764
申请日：2004-09-22
申请人： Ning Wang , Yi Dong , Shifan Cheng , Yi-Qun Li
发明人： Ning Wang , Yi Dong , Shifan Cheng , Yi-Qun Li
CPC分类号： C09K11/7734 , C09K11/0883 , H01L33/502 , Y02B20/181
摘要： Novel phosphor systems are disclosed having the formula A2SiO4:Eu2+D, where A is at least one of a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and D is a dopant selected from the group consisting of F, Cl, Br, I, P, S and N. In one embodiment, the novel phosphor has the formula (Sr1-x-yBaxMy)2 SiO4:Eu2+F (where M is one of Ca, Mg, Zn, or Cd in an amount ranging from 0
摘要翻译： 公开了具有式A 2 SiO 2：Eu 2+的新型荧光体系统，其中A是选自二价金属中的至少一种 由Sr，Ca，Ba，Mg，Zn和Cd组成的组; 并且D是选自F，Cl，Br，I，P，S和N的掺杂剂。在一个实施方案中，新型荧光体具有式（Sr 1-xy）Ba 其中，M为1个，其中M为1个，其中M为1个 的Ca，Mg，Zn或Cd，其量为0
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公开(公告)号：US20060261309A1
公开(公告)日：2006-11-23
申请号：US11417690
申请日：2006-05-03
申请人： Yi-Qun Li , Yi Dong , Shifan Cheng , Dejie Tao , Ning Wang
发明人： Yi-Qun Li , Yi Dong , Shifan Cheng , Dejie Tao , Ning Wang
CPC分类号： C09K11/7734 , H01J61/35 , H01L33/502 , H01L2924/0002 , H01L2924/00
摘要： Novel two-phase yellow phosphors are disclosed having a peak emission intensity at wavelengths ranging from about 555 nm to about 580 nm when excited by a radiation source having a wavelength ranging from 220 nm to 530 nm. The present phosphors may be represented by the formula a[Srx(M1)1-x]zSiO4●(1-a)[Sry(M2)1-y]uSiO5:Eu2+D, wherein M1 and M2 are at least one of a divalent metal such as Ba, Mg, Ca, and Zn, the values of a, x, y, z and u follow the following relationships: 0.6≦a≦0.85; 0.3≦x≦0.6; 0.85≦y≦1; 1.5≦z≦2.5; 2.6≦u≦3.3; and Eu and D each range from 0.001 to about 0.5. D is an anion selected from the group consisting of F, Cl, Br, S, and N, and at least some of the D anion replaces oxygen in the host silicate lattice of the phosphor. The present yellow phosphors have applications in high brightness white LED illumination systems, LCD display panels, plasma display panels, and yellow LEDs and illumination systems.
摘要翻译： 公开了当波长范围为220nm至530nm的辐射源激发时，波长范围为约555nm至约580nm的峰值发射强度的新型二相黄色荧光体。 本发明的荧光体可以由式a [Sr x 1（M 1）1-x N z SiO 2 S / >（1-a）[Sr y y（（（u u Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu Eu 2 + D，其中M1和M2是二价金属如Ba，Mg，Ca和Zn中的至少一种，a，x，y，z和u的值遵循以下关系 ：0.6 <= a <= 0.85; 0.3 <= x <= 0.6; 0.85 <= y <= 1; 1.5 <= z <= 2.5; 2.6 <= u <= 3.3; 并且Eu和D各自为0.001至约0.5。 D是选自F，Cl，Br，S和N的阴离子，并且D阴离子中的至少一些取代荧光体的主体硅酸盐晶格中的氧。 目前的黄色荧光粉可用于高亮度白光LED照明系统，液晶显示面板，等离子显示面板以及黄色LED和照明系统。
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公开(公告)号：US20060172179A1
公开(公告)日：2006-08-03
申请号：US11303476
申请日：2005-12-15
申请人： Tao Gu , Thomas Omstead , Ning Wang , Yi Dong , Yi-Qun Li
发明人： Tao Gu , Thomas Omstead , Ning Wang , Yi Dong , Yi-Qun Li
CPC分类号： H01B1/122 , B82Y30/00 , H01B1/04 , H01M4/8825 , H01M4/8892 , H01M4/90 , H01M4/9083 , H01M4/921 , H01M4/926 , H01M2008/1095
摘要： This invention provides novel fuel cell electrodes and catalysts comprising a series of catalytically active thin-film metal alloys with low platinum concentration supported on nanostructured materials (nanoparticles). Processing of the electrodes and catalysts can include electrodeposition methods, and high-pressure coating techniques. In certain embodiments, an integrated gas-diffusion/electrode/catalyst layer can be prepared by processing catalyst thin films and nanoparticles into gas-diffusion media such as Toray or SGL carbon fiber papers. The catalysts can be placed in contact with an electrolyte membrane for PEM fuel cell applications.
摘要翻译： 本发明提供新型燃料电池电极和催化剂，其包含一系列具有低铂浓度的催化活性薄膜金属合金，其负载在纳米结构材料（纳米颗粒）上。 电极和催化剂的加工可以包括电沉积方法和高压涂覆技术。 在某些实施方案中，可以通过将催化剂薄膜和纳米颗粒加工成气体扩散介质如Toray或SGL碳纤维纸来制备集成的气体扩散/电极/催化剂层。 催化剂可以与用于PEM燃料电池应用的电解质膜接触。
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公开(公告)号：US20060158090A1
公开(公告)日：2006-07-20
申请号：US11036914
申请日：2005-01-14
申请人： Ning Wang , Yi Dong , Shifan Cheng , Yi-Qun Li
发明人： Ning Wang , Yi Dong , Shifan Cheng , Yi-Qun Li
CPC分类号： C09K11/7734 , H01J1/63
摘要： Novel aluminate-based green phosphors are disclosed having the formula M1−xEuxAlyO1+3y/2, where M is at least one of a divalent metal selected from the group consisting of Ba, Sr, Ca, Mg, Mn, Zu, Cu, Cd, Sm, and Tm; 0.1
摘要翻译： 公开了具有下式的新型铝酸盐基绿色荧光体：M 1-x O x x Al 2 O 3 + 1 / 3y / 2 < 其中M是选自Ba，Sr，Ca，Mg，Mn，Zu，Cu，Cd，Sm和Tm中的二价金属中的至少一种; 0.1
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公开(公告)号：US20060028122A1
公开(公告)日：2006-02-09
申请号：US10948764
申请日：2004-09-22
申请人： Ning Wang , Yi Dong , Shifan Cheng , Yi-Qun Li
发明人： Ning Wang , Yi Dong , Shifan Cheng , Yi-Qun Li
CPC分类号： C09K11/7734 , C09K11/0883 , H01L33/502 , Y02B20/181
摘要： Novel phosphor systems are disclosed having the formula A2SiO4:Eu2+D, where A is at least one of a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and D is a dopant selected from the group consisting of F, Cl, Br, I, P, S and N. In one embodiment, the novel phosphor has the formula (Sr1-x-yBaxMy)2SiO4:Eu2+F (where M is one of Ca, Mg, Zn, or Cd in an amount ranging from 0
摘要翻译： 公开了具有式A 2 SiO 2：Eu 2+的新型荧光体系统，其中A是选自二价金属中的至少一种 由Sr，Ca，Ba，Mg，Zn和Cd组成的组; 并且D是选自F，Cl，Br，I，P，S和N的掺杂剂。在一个实施方案中，新型荧光体具有式（Sr 1-xy）Ba 其中，M为1个，其中M为1个，其中M为1个 的Ca，Mg，Zn或Cd，其量为0
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公开(公告)号：US20050064251A1
公开(公告)日：2005-03-24
申请号：US10857604
申请日：2004-05-27
CPC分类号： H01M8/04582 , H01M8/04373 , H01M8/04552 , H01M8/04604 , H01M8/04738 , H01M8/08 , H01M8/10 , H01M2008/1293 , H01M2008/147 , Y02E60/526
摘要： Novel systems for combinatorially screening an array of electrochemical cells are disclosed. The screening aparatus may comprise a system of electrodes and electrolytes common to each of the members of an electrochemical cell array. An electrochemical probe is used to supply a reactive fluid (or reactive species) to only one of the cells in the array at a time. The probe is configured to address each of the cells of the array individually, and to be chemically isolated from all of the other cells of the array. Thus, the cells of the array that are not being addressed by the probe are in a non-active condition. Such a system is capable of combinatorially screening a library of materials, including catalyst, electrode, and electrolyte materials, wherein each of the members of the library defines one of the cells of the array.
摘要翻译： 公开了用于组合筛选电化学电池阵列的新型系统。 筛选装置可以包括电化学电池阵列的每个部件共同的电极和电解质系统。 电化学探针用于一次向阵列中的一个单元提供反应性流体（或反应性物质）。 探针配置为单独寻址阵列的每个单元格，并与阵列的所有其他单元进行化学隔离。 因此，未被探测器寻址的阵列的单元格处于非活动状态。 这种系统能够组合地筛选材料库，包括催化剂，电极和电解质材料，其中库的每个成员限定了阵列的一个单元。
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公开(公告)号：US20050053826A1
公开(公告)日：2005-03-10
申请号：US10823088
申请日：2004-04-12
IPC分类号： B01J21/18 , B01J23/42 , B05D5/12 , H01B1/00 , H01B1/04 , H01M4/88 , H01M4/90 , H01M4/92 , H01M4/96 , H01M8/10
CPC分类号： H01M4/92 , B82Y30/00 , H01M4/921 , H01M4/926 , H01M8/0234 , H01M8/1007
摘要： This invention provides novel fuel cell catalysts comprising new series of catalytically active thin-film metal alloys with low platinum concentration supported on nanostructured materials (nanoparticles). In certain embodiments, an integrated gas-diffusion/electrode/catalyst layer can be prepared by processing catalyst thin films and nanoparticales into gas-diffusion media such as Toray or SGL carbon fiber papers. The catalysts can be placed in contact with an electrolyte membrane for PEM fuel cell applications.
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