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19 条记录 (耗时 0.016 秒)

    Method of producing epitaxial layers of II-VI semiconductors with high acceptor concentrations
    6.
    发明授权
    Method of producing epitaxial layers of II-VI semiconductors with high acceptor concentrations 失效
    制备具有高受主浓度的II-VI半导体外延层的方法

    公开(公告)号：US5227328A

    公开(公告)日：1993-07-13

    申请号：US851452

    申请日：1992-03-16

    申请人： Babar A. Khan ,  Nikhil R. Taskar

    发明人： Babar A. Khan ,  Nikhil R. Taskar

    IPC分类号： H01L21/38

    CPC分类号： H01L21/38 ,  Y10S148/064 ,  Y10S438/902

    摘要： Epitaxial layers of II-VI semiconductors in-situ doped with high concentrations of a stable acceptor-type impurity and capped with a diffusion-limiting layer, when subjected to a rapid thermal anneal at a temperature between 700 and 950 degrees C., exhibit a high conversion of the impurities to acceptors, sufficient to render the layers p-type.

    摘要翻译： 原位掺杂高浓度稳定受主型杂质并用扩散限制层封端的II-VI半导体的外延层当在700和950摄氏度之间的温度下进行快速热退火时，表现出 杂质转化为受体的高转化率，足以使层p型。

    Nanocomposite photonic structures for solid state lighting
    8.
    发明授权
    Nanocomposite photonic structures for solid state lighting 失效
    固态照明的纳米复合光子结构

    公开(公告)号：US07259400B1

    公开(公告)日：2007-08-21

    申请号：US10842399

    申请日：2004-05-10

    申请人： Nikhil R. Taskar

    发明人： Nikhil R. Taskar

    IPC分类号： H01L33/00

    CPC分类号： H01L33/502 ,  H01L33/44 ,  H01L33/54

    摘要： A photonic structure for “white” light generation by phosphors under the excitation of a LED. The photonic structure mounts the LED and an optically transparent nanocomposite matrix having dispersed therein phosphors which will emit light under the excitation of the radiation of the LED. The phosphors dispersed in the matrix may be nanocrystalline, or larger sized with the addition of non light emitting, non light scattering nanoparticles dispersed within the matrix material so as to match the index of refraction of the matrix material to that of the phosphors. The nanocomposite matrix material may be readily formed by molding and formed into a variety of shapes including lenses for focusing the emitted light. A large number of the photonic structures may be arranged on a substrate to provide even illumination or other purposes.

    摘要翻译： 在LED的激发下由磷光体产生“白”光的光子结构。 光子结构安装LED和具有分散在其中的荧光体的光学透明纳米复合物基体，其将在LED的辐射的激发下发光。 分散在基质中的磷光体可以是纳米晶体，或者通过添加分散在基质材料内的非发光的非光散射纳米粒子的尺寸，以使基质材料的折射率与荧光体的折射率相匹配。 纳米复合材料基体材料可以容易地通过模塑形成并形成为包括用于聚焦发射光的透镜的各种形状。 大量的光子结构可以被布置在基板上以提供均匀的照明或其它目的。

    X-ray imaging system incorporating pixelated X-ray source and synchronized detector
    9.
    发明授权
    X-ray imaging system incorporating pixelated X-ray source and synchronized detector 失效
    包含像素化X射线源和同步检测器的X射线成像系统

    公开(公告)号：US06674837B1

    公开(公告)日：2004-01-06

    申请号：US10172704

    申请日：2002-06-14

    申请人： Nikhil R. Taskar ,  Rameshwar Nath Bhargava ,  Paul J. Patt

    发明人： Nikhil R. Taskar ,  Rameshwar Nath Bhargava ,  Paul J. Patt

    IPC分类号： H01J3500

    CPC分类号： A61B6/542 ,  A61B6/00 ,  A61B6/4028 ,  A61B6/4216 ,  A61B6/482 ,  G01T1/2928 ,  H01J2235/068 ,  Y10S977/928

    摘要： An X-ray imaging system utilizing a pixelated X-ray source and a X-ray imaging detector operated synchronously. The imaging system may be used in industrial and medical applications. The X-ray source and X-ray detector are synchronized such that a corresponding area of the X-ray detector is activated when the corresponding area of the X-ray source is emitting X-rays. Synchronized and adaptive emission and detection of the X-rays results in scatter rejection, improved image quality, and optimum exposure and dose reduction.

    摘要翻译： 使用像素化X射线源的X射线成像系统和同步运行的X射线成像检测器。 成像系统可用于工业和医疗应用。 X射线源和X射线检测器被同步，使得当X射线源的相应区域发射X射线时，X射线检测器的相应区域被激活。 X射线的同步和自适应发射和检测导致散射抑制，改善的图像质量以及最佳的曝光和剂量降低。