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    Method of preparing cadmium sulfide nanocrystals emitting light at multiple wavelengths, and cadmium sulfide nanocrystals prepared by the method
    1.
    发明授权
    Method of preparing cadmium sulfide nanocrystals emitting light at multiple wavelengths, and cadmium sulfide nanocrystals prepared by the method 有权
    制备发射多波长光的硫化镉纳米晶体的方法和通过该方法制备的硫化镉纳米晶体

    公开(公告)号：US07468168B2

    公开(公告)日：2008-12-23

    申请号：US11002490

    申请日：2004-12-03

    申请人： Eun Joo Jang ,  Shin Ae Jun ,  Tae Kyung Ahn ,  Sung Hun Lee ,  Seong Jae Choi

    发明人： Eun Joo Jang ,  Shin Ae Jun ,  Tae Kyung Ahn ,  Sung Hun Lee ,  Seong Jae Choi

    IPC分类号： C01G11/02

    CPC分类号： C09K11/565 ,  B82Y30/00 ,  C01G11/02 ,  C01P2002/84 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/64 ,  C30B7/00 ,  C30B29/50 ,  C30B29/60 ,  H01L33/28 ,  H05B33/14 ,  Y02B20/181 ,  Y10S362/80 ,  Y10S977/773 ,  Y10S977/775

    摘要： A method for preparing cadmium sulfide nanocrystals emitting light at multiple wavelengths. The method comprises the steps of (a) mixing a cadmium precursor and a dispersant in a solvent that weakly coordinates to the cadmium precursor, and heating the mixture to obtain a cadmium precursor solution, (b) dissolving a sulfur precursor in a solvent that weakly coordinates to the sulfur precursor to obtain a sulfur precursor solution, and (c) feeding the sulfur precursor solution to the heated cadmium precursor solution maintained at a high temperature to prepare cadmium sulfide crystals, and growing the cadmium sulfide crystals. Further, cadmium sulfide nanocrystals prepared by the method. The cadmium sulfide nanocrystals have uniform size and shape and can emit light close to white light simultaneously at different wavelengths upon excitation. Due to these characteristics, the cadmium sulfide nanocrystals can be applied to white light-emitting diode devices.

    摘要翻译： 一种制备发射多波长光的硫化镉纳米晶体的方法。 该方法包括以下步骤：（a）将镉前体与分散剂混合在与镉前体弱配位的溶剂中，加热混合物得到镉前体溶液，（b）将硫前体溶于弱溶剂中 与硫前体配位以获得硫前体溶液，和（c）将硫前体溶液供给到保持在高温下的加热镉前体溶液以制备硫化镉晶体，并生长硫化镉晶体。 此外，通过该方法制备的硫化镉纳米晶体。 硫化镉纳米晶体具有均匀的尺寸和形状，并且可以在激发时以不同的波长同时发射接近白光的光。 由于这些特性，硫化镉纳米晶体可以应用于白色发光二极管器件。

    Controlled Fabrication of Semiconductor-Metal Hybrid Nano-Heterostructures via Site-Selective Metal Photodeposition
    3.
    发明申请
    Controlled Fabrication of Semiconductor-Metal Hybrid Nano-Heterostructures via Site-Selective Metal Photodeposition 有权
    通过场地选择性金属光沉积控制制造半导体 - 金属杂化纳米异质结构

    公开(公告)号：US20130174778A1

    公开(公告)日：2013-07-11

    申请号：US13733975

    申请日：2013-01-04

    申请人： Javier Vela Becerra ,  T. Purnima A. Ruberu

    发明人： Javier Vela Becerra ,  T. Purnima A. Ruberu

    IPC分类号： C30B7/14 ,  C30B7/00

    CPC分类号： C30B7/14 ,  C30B7/005 ,  C30B29/02 ,  C30B29/50 ,  C30B29/60

    摘要： A method of synthesizing colloidal semiconductor-metal hybrid heterostructures is disclosed. The method includes dissolving semiconductor nanorods in a solvent to form a nanorod solution, and adding a precursor solution to the nanorod solution. The precursor solution contains a metal. The method further includes illuminating the combined precursor and nanorod solutions with light of a specific wavelength. The illumination causes the deposition of the metal in the precursor solution onto the surface of the semiconductor nanorods.

    摘要翻译： 公开了一种合成胶体半导体 - 金属杂化异质结构的方法。 该方法包括将半导体纳米棒溶解在溶剂中以形成纳米棒溶液，并将前体溶液加入到纳米棒溶液中。 前体溶液含有金属。 该方法还包括用特定波长的光照射组合的前体和纳米棒溶液。 照明导致前体溶液中的金属沉积到半导体纳米棒的表面上。

    MAKING COLLOIDAL TERNARY NANOCRYSTALS
    8.
    发明申请
    MAKING COLLOIDAL TERNARY NANOCRYSTALS 审中-公开
    制作胶体三次纳米晶体

    公开(公告)号：US20100289003A1

    公开(公告)日：2010-11-18

    申请号：US11926538

    申请日：2007-10-29

    申请人： Keith B. Kahen ,  Xiaofan Ren

    发明人： Keith B. Kahen ,  Xiaofan Ren

    IPC分类号： H01L29/38 ,  H01L21/20

    CPC分类号： C09K11/02 ,  C09K11/88 ,  C09K11/883 ,  C30B7/00 ,  C30B29/40 ,  C30B29/48 ,  C30B29/50 ,  C30B29/60 ,  C30B33/02

    摘要： A method of making a colloidal solution of ternary semiconductor nanocrystals, includes providing binary semiconductor cores; forming first shells on the binary semiconductor cores containing one of the components of the binary semiconductor cores and another component which when combined with the binary semiconductor will form a ternary semiconductor, thereby providing core/shell nanocrystals; and annealing the core/shell nanocrystals to form ternary semiconductor nanocrystals containing a gradient in alloy composition.

    摘要翻译： 制备三元半导体纳米晶体的胶体溶液的方法包括提供二元半导体芯; 在包含二元半导体芯的一个部件的二元半导体芯上形成第一个壳，另一个组件与二元半导体组合时形成三元半导体，由此提供核/壳纳米晶体; 并退火核/壳纳米晶体以形成含有合金组成梯度的三元半导体纳米晶体。

    Synthesis of cadmium sulfide using the spontaneous reaction of dialkylcadmium and hydrogen sulfide
    10.
    依法登记的发明
    Synthesis of cadmium sulfide using the spontaneous reaction of dialkylcadmium and hydrogen sulfide 失效
    使用二烷基镉和硫化氢的自发反应合成硫化镉

    公开(公告)号：USH459H

    公开(公告)日：1988-04-05

    申请号：US67769

    申请日：1987-06-29

    申请人： Ann E. Stanley

    发明人： Ann E. Stanley

    IPC分类号： C01G11/02 ,  C30B11/00 ,  C30B25/00

    CPC分类号： C30B11/00 ,  C01G11/02 ,  C30B25/00 ,  C30B29/50

    摘要： Cadmium sulfide is formed successfully from the reactants hydrogen sulfidemd the representative dialkylcadmium, dimethylcadmium, spontaneously when mixed in the gas phase. Reactions are monitored using fourier transform infrared spectroscopy which also permits the identification of gaseous products. The gaseous products of this reaction are identified as methane and ethene. The stoichiometry of the cadmium sulfide depends upon the reactant pressure ratios. The process procedure and sample handling is accomplished using standard vacuum line techniques. This particular process is extremely useful, as the stoichiometry of the product cadmium sulfide can be controlled by the purity of the starting materials and the ratios of reactant pressures. Typical reaction mixtures range from about 14 to 32 torr of dimethylcadmium and from about 30 to about 279 torr of hydrogen sulfide. The cadmium sulfide is formed as a reddish orange powder which is used as a precursor for a single crystal production for detector use.