公开(公告)号：US10399148B2

公开(公告)日：2019-09-03

申请号：US15739536

申请日：2016-06-24

申请人： Korea University Research and Business Foundation

发明人： Yun-Mo Sung ,  Ki-Hyun Cho

IPC分类号： C01G21/00 ,  C01G21/21 ,  B22F9/24 ,  B22F1/00 ,  C01B17/20 ,  C01B19/00 ,  C04B35/626 ,  C04B35/628

摘要： The present invention relates to a method for preparing a phase-separated lead telluride-lead sulfide nanopowder using solution synthesis and a phase-separated lead telluride-lead sulfide nanopowder prepared by the method. The method includes: (a) mixing tellurium and a first solvent, followed by ultrasonic irradiation to prepare a tellurium precursor solution; (b) mixing an organosulfur compound and a second solvent, followed by ultrasonic irradiation to prepare a sulfur precursor solution; (c) mixing lead oxide, a third solvent, and a fourth solvent and heating the mixture to prepare a lead precursor solution; (d) adding the tellurium precursor solution to the lead precursor solution and allowing the mixture to react; (e) adding the sulfur precursor solution to the reaction mixture of step (d) and allowing the resulting mixture to react; and (f) cooling the reaction mixture of step (e) to room temperature to prepare a phase-separated lead telluride-lead sulfide nanopowder.

公开(公告)号：US20160375495A9

公开(公告)日：2016-12-29

申请号：US14214587

申请日：2014-03-14

申请人： Shoei Electronic Materials, Inc.

发明人： David M. Schut ,  Patrick M. Haben ,  Thomas E. Novet ,  Daniel A. Peterson ,  George M. Williams

IPC分类号： B22F9/16 ,  C01G21/21

CPC分类号： B22F9/16 ,  B01J19/0093 ,  B01J2219/00795 ,  B01J2219/0086 ,  B01J2219/00869 ,  B01J2219/00873 ,  B01J2219/00882 ,  B01J2219/00889 ,  B01J2219/00903 ,  B01J2219/00934 ,  B01J2219/00941 ,  B01J2219/00957 ,  B01J2219/0097 ,  B22F1/0018 ,  B22F1/0062 ,  B22F1/02 ,  B22F9/24 ,  B22F2999/00 ,  C01B19/002 ,  C01G21/21 ,  C01P2004/03 ,  B22F2202/11

摘要： A continuous flow reactor for the efficient synthesis of nanoparticles with a high degree of crystallinity, uniform particle size, and homogenous stoichiometry throughout the crystal is described. Disclosed embodiments include a flow reactor with an energy source for rapid nucleation of the procurors following by a separate heating source for growing the nucleates. Segmented flow may be provided to facilitate mixing and uniform energy absorption of the precursors, and post production quality testing in communication with a control system allow automatic real-time adjustment of the production parameters. The nucleation energy source can be monomodal, multimodal, or multivariable frequency microwave energy and tuned to allow different precursors to nucleate at substantially the same time thereby resulting in a substantially homogenous nanoparticle. A shell application system may also be provided to allow one or more shell layers to be formed onto each nanoparticle.

摘要翻译： 描述了在整个晶体中高效合成具有高结晶度，均匀粒径和均匀化学计量的纳米颗粒的连续流动反应器。 公开的实施方案包括具有用于快速成核的能量源的流动反应器，后者是用于生长成核的单独的加热源。 可以提供分段流动以促进前体的混合和均匀的能量吸收，并且与控制系统通信的后期生产质量测试允许生产参数的自动实时调整。 成核能源可以是单峰，多峰或多变量微波能量，并且被调整以允许不同的前体在基本相同的时间成核，从而导致基本上均匀的纳米颗粒。 还可以提供壳应用系统以允许在每个纳米颗粒上形成一个或多个壳层。

公开(公告)号：US08859000B2

公开(公告)日：2014-10-14

申请号：US10839538

申请日：2004-05-05

申请人： Triantafillos J. Mountziaris ,  Paschalis Alexandridis

发明人： Triantafillos J. Mountziaris ,  Paschalis Alexandridis

IPC分类号： A61K9/14 ,  B82Y5/00 ,  C01B17/00 ,  C01G1/02 ,  C01G9/08 ,  C01B19/00 ,  C01G21/21 ,  B82Y30/00 ,  C01G11/02 ,  B01J13/02 ,  C01G1/12

CPC分类号： B82Y30/00 ,  B01J13/02 ,  C01B19/007 ,  C01G1/02 ,  C01G1/12 ,  C01G9/08 ,  C01G11/02 ,  C01G21/21 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/62 ,  C01P2004/64 ,  Y10S977/70

摘要： The present invention is directed to a process for synthesizing nanoparticles. This process involves providing a stable emulsion containing a plurality of droplets suspended in a continuous phase. The droplets, which are encapsulated by an interfacially-active material, contain a first reactant dissolved in a dispersed phase. The process also involves contacting a gas phase containing a second reactant diluted in a carrier gas with the stable emulsion under conditions effective to permit the first reactant and second reactant to react and form nanoparticles. The present invention further relates to nanoparticle-loaded emulsions and their uses in formulations for various purposes.

摘要翻译： 本发明涉及一种纳米颗粒的合成方法。 该方法包括提供包含悬浮在连续相中的多个液滴的稳定乳液。 由界面活性物质包封的液滴含有溶解在分散相中的第一反应物。 该方法还包括在有效使第一反应物和第二反应物反应并形成纳米颗粒的条件下，将含有载体中稀释的第二反应物的气相与稳定的乳液接触。 本发明还涉及负载纳米颗粒的乳剂及其在制剂中用于各种目的的用途。

公开(公告)号：US20120018551A1

公开(公告)日：2012-01-26

申请号：US12991879

申请日：2009-04-09

申请人： David Thomas Britton ,  Margit Harting

发明人： David Thomas Britton ,  Margit Harting

IPC分类号： B02C23/00 ,  C01B33/02 ,  C01G21/21 ,  B01J19/00 ,  C01B19/04 ,  B82Y40/00 ,  B82Y30/00

CPC分类号： B02C23/06 ,  B02C17/00 ,  B02C17/20 ,  B22F9/20 ,  B22F2009/041 ,  B22F2009/043 ,  B22F2009/049 ,  B22F2999/00 ,  C01B19/002 ,  C01B19/007 ,  C01B33/02 ,  C01B33/113 ,  C01G21/21 ,  C01G28/00 ,  C01G30/00 ,  C01P2002/82 ,  C01P2004/04 ,  C01P2006/40 ,  C09K11/62 ,  C09K11/668 ,  C09K11/70 ,  C09K11/74 ,  C09K11/75 ,  C09K11/881 ,  C09K11/883 ,  C22C1/0491 ,  B22F9/04

摘要： A method is provided of producing inorganic semiconducting nanoparticles having a stable surface. The method comprises providing an inorganic bulk semiconductor material, such as silicon or germanium, and milling the bulk semiconductor material in the presence of a selected reducing agent. The reducing agent acts to chemically reduce oxides of one or more component elements of the semiconductor material, or prevent the formation of such oxides by being preferentially oxidised, thereby to provide semiconducting nanoparticles having a stable surface which allows electrical contact between the nanoparticles. The milling may take place in a mill in which the milling media and/or one or more components of the mill comprise the selected reducing agent. For example, the milling can be carried out in a high energy mill with a hammer action in which a pestle of the mill, a mortar of the mill, or both are composed of the selected reducing agent, or a low energy, stirred media mill, such as a ball mill, a rod mill or similar, in which the milling media, a lining of the mill, or both are composed of the reducing agent. The milling media or mill are typically composed of a metal selected from the group comprising iron, chromium, cobalt, nickel, tin, titanium, tungsten, vanadium, and aluminium, or an alloy containing one or more of said metals. In another embodiment of the method, the selected reducing agent comprises a liquid contained in the mill during milling of the bulk semiconductor material. The liquid is typically an acidic solution containing any of hydrochloric, sulphuric, nitric, acetic, formic, or carbonic acid, or a mixture thereof. The invention extends to a mill for carrying out the method.

摘要翻译： 提供了制备具有稳定表面的无机半导体纳米颗粒的方法。 该方法包括提供诸如硅或锗之类的无机体半导体材料，以及在选择的还原剂存在下研磨体半导体材料。 还原剂用于化学还原半导体材料的一种或多种组分元素的氧化物，或通过优先氧化来防止形成这种氧化物，从而提供具有允许纳米颗粒之间电接触的稳定表面的半导体纳米颗粒。 研磨可以在其中研磨介质和/或研磨机的一个或多个组分包含所选择的还原剂的研磨机中进行。 例如，铣削可以在具有锤击作用的高能磨机中进行，其中研磨机的研杵，研磨机的砂浆或两者均由选择的还原剂或低能量的搅拌介质研磨机 ，例如球磨机，棒磨机或类似物，其中研磨介质，研磨机的衬里或两者都由还原剂组成。 研磨介质或研磨机通常由选自铁，铬，钴，镍，锡，钛，钨，钒和铝的金属或含有一种或多种所述金属的合金组成。 在该方法的另一个实施方案中，所选择的还原剂包括在研磨体内半导体材料期间包含在研磨机中的液体。 液体通常是含有盐酸，硫酸，硝酸，乙酸，甲酸或碳酸中的任何一种或其混合物的酸性溶液。 本发明延伸到用于实施该方法的轧机。

公开(公告)号：US08080229B2

公开(公告)日：2011-12-20

申请号：US13155141

申请日：2011-06-07

申请人： Wei-Heng Shih ,  Wan Y. Shih ,  Hui Li ,  Melissa Colleen Schillo

发明人： Wei-Heng Shih ,  Wan Y. Shih ,  Hui Li ,  Melissa Colleen Schillo

IPC分类号： C01B17/20 ,  C01G21/21 ,  C01G11/02 ,  C01G9/08 ,  C01G45/00

CPC分类号： C09K11/565 ,  B82Y5/00 ,  B82Y10/00 ,  B82Y30/00 ,  C09K11/883 ,  Y10S977/774

摘要： An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via an aqueous synthesis route. MS QDs are capped with thiol-containing charged molecules in a single step. The resultant MS QDs exhibit the distinctive excitonic photoluminescence desired of QDs and can be fabricated to avoid undesirable broadband emissions at higher wavelengths. This provides a significant improvement over the present complex and expensive commercial processes for the production of QDs. The aqueous QDs are stable in biological fluids over a long period of time. In addition, nontoxic ZnS QDs have been produced with good photoluminescence properties by refluxing the ZnS QD suspensions over a period of time.

摘要翻译： 提供了一种用于生产水溶性量子点的经济，直接的合成方法，可用于生物共轭。 该方法可以产生发射波长从400nm到700nm变化的含水量子点。 高度发光的金属硫化物（MS）量子点通过水性合成路线生产。 在一个步骤中，MS量子点被含硫醇的带电分子封盖。 所得的MS量子点显示量子点所需的独特的激子光致发光，并且可以被制造以避免在较高波长处的不期望的宽带发射。 这提供了相对于目前用于生产量子点的复杂和昂贵的商业过程的显着改进。 水质量子在长时间内在生物体液中是稳定的。 此外，通过在一段时间内回流ZnS QD悬浮液，已经生产出具有良好光致发光性质的无毒ZnS量子点。

公开(公告)号：US20110123418A1

公开(公告)日：2011-05-26

申请号：US13000467

申请日：2009-06-26

申请人： Eric Girvan Roche

发明人： Eric Girvan Roche

IPC分类号： C01G53/11 ,  C22B3/00 ,  C01G55/00 ,  C01G49/12 ,  C01G28/00 ,  C01G17/00 ,  C01G15/00 ,  C01G51/00 ,  C01G29/00 ,  C01G13/00 ,  C01G11/02 ,  C01G9/08 ,  C01G5/00 ,  C01G7/00 ,  C01G3/12 ,  C01G21/21 ,  C01G19/00 ,  C01G30/00

CPC分类号： C22B23/0461 ,  C01G1/12 ,  C01G51/30 ,  C01G53/11 ,  C22B3/44 ,  C22B15/0093 ,  C22B23/0415 ,  C22B23/0446 ,  Y02P10/234 ,  Y02P10/236

摘要： A process for the recovery of a metal sulfide from a metal ion containing solution, including the steps of: a) providing a slurry containing seed panicles of said metal sulfide; h) adding a sulfide ion containing solution to said slurry to form an activated seed slurry; c) mixing said activated seed slurry with said metal ion containing solution to thereby form a metal sulfide precipitate; and d) recovering said metal sulfide precipitate.

摘要翻译： 一种从含金属离子溶液中回收金属硫化物的方法，包括以下步骤：a）提供含有所述金属硫化物种子穗的浆料; h）向所述浆料中加入含硫离子的溶液以形成活化的种子浆料; c）将所述活化的种子浆料与所述含金属离子的溶液混合，从而形成金属硫化物沉淀物; 和d）回收所述金属硫化物沉淀物。

公开(公告)号：US07824653B2

公开(公告)日：2010-11-02

申请号：US12552970

申请日：2009-09-02

申请人： Wei-Heng Shih ,  Wan Y. Shih ,  Hui Li ,  Melissa Colleen Schillo

发明人： Wei-Heng Shih ,  Wan Y. Shih ,  Hui Li ,  Melissa Colleen Schillo

IPC分类号： C01B17/20 ,  C01G21/21 ,  C01G11/02 ,  C01G9/08 ,  C01G45/00

CPC分类号： C09K11/565 ,  B82Y5/00 ,  B82Y10/00 ,  B82Y30/00 ,  C09K11/883 ,  Y10S977/774

摘要： An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via an aqueous synthesis route. MS QDs are capped with thiol-containing charged molecules in a single step. The resultant MS QDs exhibit the distinctive excitonic photoluminescence desired of QDs and can be fabricated to avoid undesirable broadband emissions at higher wavelengths. This provides a significant improvement over the present complex and expensive commercial processes for the production of QDs. The aqueous QDs are stable in biological fluids over a long period of time. In addition, nontoxic ZnS QDs have been produced with good photoluminescence properties by refluxing the ZnS QD suspensions over a period of time.

摘要翻译： 提供了一种用于生产水溶性量子点的经济，直接的合成方法，可用于生物共轭。 该方法可以产生发射波长从400nm到700nm变化的含水量子点。 高度发光的金属硫化物（MS）量子点通过水性合成路线生产。 在一个步骤中，MS量子点被含硫醇的带电分子封盖。 所得的MS量子点显示量子点所需的独特的激子光致发光，并且可以被制造以避免在较高波长处的不期望的宽带发射。 这提供了相对于目前用于生产量子点的复杂和昂贵的商业过程的显着改进。 水质量子在长时间内在生物体液中是稳定的。 此外，通过在一段时间内回流ZnS QD悬浮液，已经生产出具有良好光致发光性质的无毒ZnS量子点。

公开(公告)号：US07597870B2

公开(公告)日：2009-10-06

申请号：US11968228

申请日：2008-01-02

申请人： Wei-Heng Shih ,  Wan Y. Shih ,  Hui Li ,  Melissa Colleen Schillo

发明人： Wei-Heng Shih ,  Wan Y. Shih ,  Hui Li ,  Melissa Colleen Schillo

IPC分类号： C01B17/20 ,  C01G21/21 ,  C01G11/02 ,  C01G9/08 ,  C01G45/00

CPC分类号： C09K11/565 ,  B82Y5/00 ,  B82Y10/00 ,  B82Y30/00 ,  C09K11/883 ,  Y10S977/774

摘要： An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via an aqueous synthesis route. MS QDs are capped with thiol-containing charged molecules in a single step. The resultant MS QDs exhibit the distinctive excitonic photoluminescence desired of QDs and can be fabricated to avoid undesirable broadband emissions at higher wavelengths. This provides a significant improvement over the present complex and expensive commercial processes for the production of QDs. The aqueous QDs are stable in biological fluids over a long period of time. In addition, nontoxic ZnS QDs have been produced with good photoluminescence properties by refluxing the ZnS QD suspensions over a period of time.

摘要翻译： 提供了一种用于生产水溶性量子点的经济，直接的合成方法，可用于生物共轭。 该方法可以产生发射波长从400nm到700nm变化的含水量子点。 高度发光的金属硫化物（MS）量子点通过水性合成路线生产。 在一个步骤中，MS量子点被含硫醇的带电分子封盖。 所得的MS量子点显示量子点所需的独特的激子光致发光，并且可以被制造以避免在较高波长处的不期望的宽带发射。 这提供了相对于目前用于生产量子点的复杂和昂贵的商业过程的显着改进。 水质量子在长时间内在生物体液中是稳定的。 此外，通过在一段时间内回流ZnS QD悬浮液，已经生产出具有良好光致发光性质的无毒ZnS量子点。

公开(公告)号：US20050201963A1

公开(公告)日：2005-09-15

申请号：US11124244

申请日：2005-05-09

申请人： Partha Dutta

发明人： Partha Dutta

IPC分类号： C01G21/21 ,  C30B7/00 ,  C30B7/14 ,  A61K9/14 ,  A61K7/06 ,  A61L9/00 ,  C09D11/00 ,  H01L23/58

CPC分类号： C01B19/007 ,  B82Y30/00 ,  C01G21/21 ,  C01P2004/52 ,  C01P2004/64 ,  C01P2006/40 ,  C09D5/028 ,  C09D5/24 ,  C09D11/52 ,  C09K11/025 ,  C30B7/00 ,  C30B7/14 ,  C30B29/40 ,  C30B29/48 ,  C30B29/605 ,  H01L21/02521 ,  H01L21/02568 ,  H01L21/02601 ,  H01L21/02628 ,  H01L21/02664 ,  H01L51/5012 ,  Y10S977/778 ,  Y10S977/786 ,  Y10S977/813 ,  Y10S977/835 ,  Y10S977/847 ,  Y10S977/856 ,  Y10S977/888 ,  Y10T428/2991

摘要： A plurality of semiconductor nanoparticles having an elementally passivated surface are provided. These nanoparticles are capable of being suspended in water without substantial agglomeration and substantial precipitation on container surfaces for at least 30 days. The method of making the semiconductor nanoparticles includes reacting at least a first reactant and a second reactant in a solution to form the semiconductor nanoparticles in the solution. A first reactant provides a passivating element which binds to dangling bonds on a surface of the nanoparticles to passivate the surface of the nanoparticles. The nanoparticle size can be tuned by etching the nanoparticles located in the solution to a desired size.

公开(公告)号：US11846041B2

公开(公告)日：2023-12-19

申请号：US17055052

申请日：2019-05-14

申请人： QD SOLAR INC.

发明人： Younghoon Kim ,  Fanglin Che ,  Jea Woong Jo ,  Jongmin Choi ,  Francisco Pelayo Garcia De Arquer ,  Sjoerd Hoogland ,  Edward H. Sargent

IPC分类号： C30B29/46 ,  C01G21/21 ,  C30B33/00 ,  H01L31/0296 ,  H01L31/036 ,  H01L31/18 ,  B82Y20/00 ,  B82Y40/00

CPC分类号： C30B29/46 ,  C01G21/21 ,  C30B33/00 ,  H01L31/0296 ,  H01L31/036 ,  H01L31/1868 ,  B82Y20/00 ,  B82Y40/00 ,  C01P2002/85 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/40

摘要： The present disclosure provides a method for facet-selective passivation on each crystal facet of colloidal nanocrystals via solution-phase ligand exchange process, thereby providing highly-passivated and colloidally-stable nanocrystal inks. This ligand exchange strategy separately addresses polar and non-polar facets precluding from deleterious nanocrystal aggregation in the colloid. The method involves the introduction of alkali metal organic complexes during metal halide conventional solution exchanges, and one specific example is Na+·Ac−. Alkali metal ions stabilize and passivate non polar facets whereas polar facets are passivated through metal halides. This strategy leads to a significant decrease in nanocrystal aggregation during and after ligand exchange, and to improved photophysical properties stemming from this. The resulting nanocrystal solid films exhibit improved stability, retain their absorption features, and have a minimized Stokes shift.