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11 条记录 (耗时 0.029 秒)

    Processes for producing coated magnetic microparticles and uses thereof
    1.
    发明申请
    Processes for producing coated magnetic microparticles and uses thereof 审中-公开
    制备涂覆磁性微粒的方法及其应用

    公开(公告)号：US20050009002A1

    公开(公告)日：2005-01-13

    申请号：US10472663

    申请日：2002-03-20

    申请人： Depu Chen ,  Xin Xie ,  Xu Zhang ,  Baoquan Sun

    发明人： Depu Chen ,  Xin Xie ,  Xu Zhang ,  Baoquan Sun

    IPC分类号： B01J2/00 ,  B01J13/12 ,  B01J13/14 ,  B03C1/02 ,  G01N33/543 ,  G01N33/553 ,  C12Q1/00

    CPC分类号： G01N33/54326 ,  B01J2/006 ,  B01J13/12 ,  B01J2219/005 ,  B01J2219/00648 ,  B01J2219/00655

    摘要： This invention relates generally to the field of production of coated magnetizable microparticles and uses thereof. In particular, the invention provides a process for producing coated magnetizable microparticles with active functional groups, which process uses, inter alia, conducting polymerization of said coating monomers on the surface of magnetic particle to form coated magnetizable microparticles with active functional groups in the presence of a coupling agent, coating monomers, a functionalization reagent, a cross-linking agent and an initiator in an organic solvent containing a surfactant. The coated magnetizable microparticles produced according to the present processes and uses of the coated magnetizable microparticles, e.g., in isolating and/or manipulating various moieties are also provided.

    摘要翻译： 本发明一般涉及可涂覆的可磁化微粒的生产领域及其用途。 特别地，本发明提供了一种制备具有活性官能团的包覆的可磁化微粒的方法，该方法尤其用于在磁性颗粒的表面上进行所述涂覆单体的聚合，以形成具有活性官能团的可涂覆的可磁化微粒， 偶联剂，包衣单体，官能化试剂，交联剂和引发剂在含有表面活性剂的有机溶剂中。 还提供根据本发明方法制备的包覆的可磁化微粒和涂覆的可磁化微粒的用途，例如分离和/或操纵各种部分。

    Nanometer-sized up-converting phosphor fluoride particles and process of preparation
    2.
    发明申请
    Nanometer-sized up-converting phosphor fluoride particles and process of preparation 有权
    纳米级上转换氟化磷颗粒及其制备方法

    公开(公告)号：US20060003466A1

    公开(公告)日：2006-01-05

    申请号：US10511363

    申请日：2003-04-15

    申请人： Guangshun Yi ,  Baoquan Sun ,  Depu Chen ,  Yuxiang Zhou ,  Jing Cheng ,  Wenjun Yang ,  Yue Ge ,  Lianghong Guo

    发明人： Guangshun Yi ,  Baoquan Sun ,  Depu Chen ,  Yuxiang Zhou ,  Jing Cheng ,  Wenjun Yang ,  Yue Ge ,  Lianghong Guo

    IPC分类号： G01N33/553

    CPC分类号： C09K11/7772 ,  C09K11/7773 ,  Y10S977/83 ,  Y10S977/834

    摘要： Nanometer-scaled up-converting fluoride phosphor particles and processes of making them are disclosed. In the process, an aqueous solution consisting of soluble salts of rare-earth metal ions at a molar ratio of (yttrium, lanthanum or gadolinium): ytterbium:(erbium, holmium, terbium or thulium)=(70-90):(0-29):(0.001-15) is mixed a rare-earth metal chelator and a soluble fluoride salt to form precipitates, which are then annealed at an elevated temperature to produce nanometer-scaled up-converting fluoride phosphor particles. The particle size is between 35 nm and 200 nm, and can be controlled by the amount of the metal chelator added to the solution. The nanometer-sized particle is applicable to many biological assays.

    摘要翻译： 公开了纳米级上转换氟化物荧光体颗粒及其制备方法。 在该方法中，以（钇，镧或钆）的摩尔比形成的稀土金属离子的可溶性盐：镱（铒，钬，铽或ium）=（70-90）：（0） -29）:( 0.001-15）混合稀土金属螯合剂和可溶性氟化物盐形成析出物，然后在升高的温度下退火，生成纳米级的上转换氟化物荧光体颗粒。 粒径在35nm和200nm之间，并且可以通过添加到溶液中的金属螯合剂的量来控制。 纳米级粒子适用于许多生物测定。

    Nanometer-sized up-converting phosphor fluoride particles and process of preparation
    9.
    发明授权
    Nanometer-sized up-converting phosphor fluoride particles and process of preparation 有权
    纳米级上转换氟化磷颗粒及其制备方法

    公开(公告)号：US07422703B2

    公开(公告)日：2008-09-09

    申请号：US10511363

    申请日：2003-04-15

    申请人： Guangshun Yi ,  Baoquan Sun ,  Depu Chen ,  Yuxiang Zhou ,  Jing Cheng ,  Wenjun Yang ,  Yue Ge ,  Lianghong Guo

    发明人： Guangshun Yi ,  Baoquan Sun ,  Depu Chen ,  Yuxiang Zhou ,  Jing Cheng ,  Wenjun Yang ,  Yue Ge ,  Lianghong Guo

    IPC分类号： C09K11/85

    CPC分类号： C09K11/7772 ,  C09K11/7773 ,  Y10S977/83 ,  Y10S977/834

    摘要： Nanometer-scaled up-converting fluoride phosphor particles and processes of making them are disclosed. In the process, an aqueous solution consisting of soluble salts of rare-earth metal ions at a molar ratio of (yttrium, lanthanum or gadolinium): ytterbium:(erbium, holmium, terbium or thulium)=(70-90):(0-29):(0.001-15) is mixed a rare-earth metal chelator and a soluble fluoride salt to form precipitates, which are then annealed at an elevated temperature to produce nanometer-scaled up-converting fluoride phosphor particles. The particle size is between 35 nm and 200 nm, and can be controlled by the amount of the metal chelator added to the solution. The nanometer-sized particle is applicable to many biological assays.

    摘要翻译： 公开了纳米级上转换氟化物荧光体颗粒及其制备方法。 在该方法中，以（钇，镧或钆）的摩尔比形成的稀土金属离子的可溶性盐：镱（铒，钬，铽或ium）=（70-90）：（0） -29）:( 0.001-15）混合稀土金属螯合剂和可溶性氟化物盐形成析出物，然后在升高的温度下退火，生成纳米级的上转换氟化物荧光体颗粒。 粒径在35nm和200nm之间，并且可以通过添加到溶液中的金属螯合剂的量来控制。 纳米级粒子适用于许多生物测定。

    HYBRID PHOTOVOLTAICS BASED ON SEMICONDUCTOR NANOCRYSTALS AND AMORPHOUS SILICON
    10.
    发明申请
    HYBRID PHOTOVOLTAICS BASED ON SEMICONDUCTOR NANOCRYSTALS AND AMORPHOUS SILICON 审中-公开
    基于半导体纳米晶体和非晶硅的混合光伏

    公开(公告)号：US20100236614A1

    公开(公告)日：2010-09-23

    申请号：US12701396

    申请日：2010-02-05

    申请人： Victor I. Klimov ,  Alp T. Findikoglu ,  Baoquan Sun ,  Donald J. Werder ,  Milan Sykora

    发明人： Victor I. Klimov ,  Alp T. Findikoglu ,  Baoquan Sun ,  Donald J. Werder ,  Milan Sykora

    IPC分类号： H01L31/00 ,  H01B1/04

    CPC分类号： H01L31/03529 ,  H01L31/03921 ,  H01L31/074 ,  Y02E10/50

    摘要： Semiconductor nanocrystals (NCs) are promising materials for applications in photovoltaic (PV) structures that could benefit from size-controlled tunability of absorption spectra, the ease of realization of various tandem architectures, and perhaps, increased conversion efficiency in the ultraviolet through carrier multiplication. The first practical step toward utilization of the unique properties of NCs in PV technologies could be through their integration into traditional silicon-based solar cells. Here, we demonstrate an example of such hybrid PV structures that combine colloidal NCs with amorphous silicon. In these structures, NCs and silicon are electronically coupled, and the regime of this coupling can be tuned by altering the alignment of NC states with regard to silicon band edges. For example, using wide-gap CdSe NCs we demonstrate a photoresponse which is exclusively due to the NCs. On the other hand, in devices comprising narrow-gap PbS NCs, both the NCs and silicon contribute to photocurrent, which results in PV response extending from the visible to the near-infrared. This work demonstrates the feasibility of hybrid PV devices that combine advantages of mature silicon fabrication technologies with the unique electronic properties of semiconductor NCs.

    摘要翻译： 半导体纳米晶体（NC）是用于光伏（PV）结构的有希望的材料，可以受益于吸收光谱的尺寸控制可调谐性，各种串联架构的实现的容易性，以及通过载波倍增增加紫外线的转换效率。 使用光伏技术中NC的独特性能的第一个实际步骤可以是通过与传统的硅基太阳能电池的集成。 在这里，我们演示了将胶体NC与非晶硅组合的混合PV结构的一个例子。 在这些结构中，NC和硅是电耦合的，并且可以通过改变关于硅带边缘的NC状态的对准来调节该耦合的状态。 例如，使用宽间隙CdSe NC，我们展示了仅由NCs引起的光响应。 另一方面，在包含窄间隙PbS NC的器件中，NC和硅都有助于光电流，这导致PV响应从可见光延伸到近红外。 这项工作展示了将成熟硅制造技术的优点与半导体NC的独特电​​子性能相结合的混合光伏器件的可行性。