中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

87 records (took 0.021 seconds)

    METHOD OF MAKING COMPONENTS INCLUDING QUANTUM DOTS, METHODS, AND PRODUCTS
    31.
    发明申请
    METHOD OF MAKING COMPONENTS INCLUDING QUANTUM DOTS, METHODS, AND PRODUCTS 审中-公开
    制造包含量子，方法和产品的组件的方法

    公开(公告)号：US20140027673A1

    公开(公告)日：2014-01-30

    申请号：US13762354

    申请日：2013-02-07

    Applicant: QD VISION, INC.

    Inventor： Robert J. NICK ,  Craig Alan BREEN ,  Chad M. DENTON ,  Sridhar SADASIVAN ,  John R. LINTON

    IPC: C09K11/02

    CPC classification number: C09K11/025 ,  C09K11/02 ,  C09K11/08

    Abstract: A quantum dot formulation substantially free of oxygen and, optionally, substantially free of water and a method of making a quantum dot formulation substantially free of oxygen and, optionally, substantially free of water is described. Also described are products including the quantum dot formulation described herein and related methods.

    Abstract translation: 描述了基本上不含氧和任选地基本上不含水的量子点制剂和制备基本上不含氧的量子点制剂的方法，并且任选地基本上不含水。 还描述了包括本文所述的量子点配方和相关方法的产品。

    Portable electronic device having an electro wetting display illuminated by quantum dots
    34.
    发明授权
    Portable electronic device having an electro wetting display illuminated by quantum dots 有权
    具有由量子点照射的电润湿显示器的便携式电子设备

    公开(公告)号：US08264777B2

    公开(公告)日：2012-09-11

    申请号：US11768363

    申请日：2007-06-26

    Applicant: Andrew F. Skipor ,  Marc K. Chason ,  William F. Hoffman ,  Krishna Kalyanasundaram ,  George T. Valliath

    Inventor： Andrew F. Skipor ,  Marc K. Chason ,  William F. Hoffman ,  Krishna Kalyanasundaram ,  George T. Valliath

    IPC: G02B1/06 ,  G02B3/12

    CPC classification number: G02B26/005

    Abstract: A portable electronic device (510) having a self illuminating display (200, 202, 204, 206, 300, 512) that reduces both the thickness of known displays and processing steps in the fabrication thereof is provided. The portable electronic device (510) includes an electrowetting display (200, 202, 204, 206, 300, 512) having a plurality of transparent layers defining a cavity (219). A combination of a first fluid (218, 236) and a second fluid (210, 234, 244, 254) are positioned in the cavity. First circuitry (224) is configured to be coupled to a first voltage source (222) for selectively repositioning the second fluid (210, 234, 244, 254) in relation to the first fluid (218, 236). A plurality of quantum dots (208, 360) is positioned within the second fluid (210, 234, 244, 254), and a light source (209, 309) is disposed contiguous to the plurality of layers. Second circuitry (228) is configured to be coupled to a second voltage source (226) for selectively causing the light source (209, 309) to emit photons to strike the plurality of quantum dots (208, 360). Additional similar stacks of layers (204, 206) may be added to provide a color display.

    Abstract translation: 本发明提供了一种便携式电子设备（510），其具有减少已知显示器的厚度和制造其中的处理步骤的自发光显示器（200,202,204,206,300,512）。 便携式电子设备（510）包括具有限定空腔（219）的多个透明层的电润湿显示器（200,202,204,206,300,512）。 第一流体（218,236）和第二流体（210,234,244,254）的组合被定位在空腔中。 第一电路（224）被配置为耦合到第一电压源（222），用于相对于第一流体（218,236）选择性地重新定位第二流体（210,234,244,254）。 多个量子点（208,360）定位在第二流体（210,234,244,254）内，并且光源（209,309）设置成与多个层相邻。 第二电路（228）被配置为耦合到第二电压源（226），用于选择性地使光源（209,309）发射光子以撞击多个量子点（208,360）。 可以添加附加类似的层叠层（204,206）以提供彩色显示。

    Semiconductor nanocrystals and methods
    35.
    发明授权
    Semiconductor nanocrystals and methods 有权
    半导体纳米晶体和方法

    公开(公告)号：US09543142B2

    公开(公告)日：2017-01-10

    申请号：US14182076

    申请日：2014-02-17

    Applicant: QD VISION, INC.

    Inventor： Inja Song ,  Craig Breen

    IPC: H01L21/02 ,  B82Y30/00 ,  B01J13/22

    CPC classification number: H01L21/02601 ,  B01J13/22 ,  B82Y30/00 ,  H01L21/02518 ,  H01L21/02628

    Abstract: In one embodiment, a method for forming a coating comprising a semiconductor material on at least a portion of a population of semiconductor nanocrystals comprises providing a first mixture including semiconductor nanocrystals and an aromatic solvent, introducing one or more cation precursors and one or more anion precursors into the first mixture to form a reaction mixture for forming the semiconductor material, reacting the precursors in the reaction mixture, without the addition of an acid compound, under conditions sufficient to grow a coating comprising the semiconductor material on at least a portion of an outer surface of at least a portion of the semiconductor nanocrystals, and wherein an amide compound is formed in situ in the reaction mixture prior to isolating the coated semiconductor nanocrystals. In another embodiment, method for forming a coating comprising a semiconductor material on at least a portion of a population of semiconductor nanocrystals comprises providing a first mixture including semiconductor nanocrystals and a solvent, introducing an amide compound, one or more cation precursors and one or more anion precursors into the first mixture to form a reaction mixture for forming the semiconductor material, and reacting the precursors in the reaction mixture in the presence of the amide compound, under conditions sufficient to grow a coating comprising the semiconductor material on at least a portion of an outer surface of at least a portion of the semiconductor nanocrystals. Semiconductor nanocrystals including coatings grown in accordance with the above methods are also disclosed.

    Abstract translation: 在一个实施方案中，在半导体纳米晶体群的至少一部分上形成包含半导体材料的涂层的方法包括提供包含半导体纳米晶体和芳族溶剂的第一混合物，引入一种或多种阳离子前体和一种或多种阴离子前体 进入第一混合物以形成用于形成半导体材料的反应混合物，使反应混合物中的前体在不加入酸化合物的条件下，在足以在至少一部分外部生长包含半导体材料的涂层的条件下反应 半导体纳米晶体的至少一部分的表面，并且其中在分离涂覆的半导体纳米晶体之前在反应混合物中原位形成酰胺化合物。 在另一个实施方案中，在半导体纳米晶体群的至少一部分上形成包含半导体材料的涂层的方法包括提供包含半导体纳米晶体和溶剂的第一混合物，引入酰胺化合物，一种或多种阳离子前体和一种或多种 阴离子前体进入第一混合物以形成用于形成半导体材料的反应混合物，并且在酰胺化合物存在下使反应混合物中的前体在足以在至少一部分 半导体纳米晶体的至少一部分的外表面。 还公开了包括根据上述方法生长的涂层的半导体纳米晶体。

    Nanocrystals including a group IIIA element and a group VA element, method, composition, device and other products
    36.
    发明授权
    Nanocrystals including a group IIIA element and a group VA element, method, composition, device and other products 有权
    纳米晶体包括IIIA族元素和VA族元素，方法，组成，装置等产品

    公开(公告)号：US09534173B2

    公开(公告)日：2017-01-03

    申请号：US14853388

    申请日：2015-09-14

    Applicant: QD VISION, INC.

    Inventor： Christopher R. Clough ,  Craig Breen ,  Jonathan S. Steckel ,  Ebenezer Selwyn Arun Thamban

    IPC: H05B33/00 ,  H01L33/06 ,  B82Y30/00 ,  C01B25/08 ,  C09K11/88 ,  C01G28/00 ,  C01G30/00 ,  C09K11/02 ,  C09K11/70

    CPC classification number: C09K11/883 ,  B82Y30/00 ,  C01B25/085 ,  C01B25/087 ,  C01G28/00 ,  C01G30/00 ,  C01P2004/64 ,  C01P2006/40 ,  C09K11/02 ,  C09K11/025 ,  C09K11/70 ,  H01L33/06 ,  Y10T428/2991

    Abstract: A nanocrystal comprising a semiconductor material comprising one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements, wherein the nanocrystal is capable of emitting light having a photoluminescence quantum efficiency of at least about 30% upon excitation. Also disclosed is a nanocrystal including a core comprising a first semiconductor material comprising one or more elements of Group IIIA of the Periodic Table of Elements and one or more elements of Group VA of the Periodic Table of Elements, and a shell disposed over at least a portion of the core, the shell comprising a second semiconductor material, wherein the nanocrystal is capable of emitting light having a photoluminescence quantum efficiency of at least about 30% upon excitation. Also disclosed is a nanocrystal comprising a nanocrystal core and a shell comprising a semiconductor material disposed on at least a portion of the nanocrystal core, wherein the semiconductor material comprises at least three chemical elements and is obtainable by a process comprising adding a precursor for at least one of the chemical elements of the semiconductor material from a separate source to a nanocrystal core while simultaneously adding amounts of precursors for the other chemical elements of the semiconductor material. A population of nanocrystals, method for preparing nanocrystals, compositions, and devices including nanocrystals are also disclosed.

    Abstract translation: 包括半导体材料的纳米晶体，所述半导体材料包含元素周期表的IIIA族元素的一种或多种元素和元素周期表的第VA族元素的一种或多种元素，其中所述纳米晶体能够发射具有光致发光量子效率的光 激发时至少约30％。 还公开了纳米晶体，其包括芯，其包含包含元素周期表的IIIA族的一种或多种元素的第一半导体材料和元素周期表的VA族的一种或多种元素，以及至少一种 芯的部分，壳包括第二半导体材料，其中纳米晶体在激发时能够发射具有至少约30％的光致发光量子效率的光。 还公开了一种纳米晶体，其包含纳米晶核和包含设置在纳米晶核的至少一部分上的半导体材料的外壳，其中所述半导体材料包含至少三种化学元素，并且可通过以下方法获得： 半导体材料的一种化学元素从单独的源到纳米晶核，同时为半导体材料的其它化学元素添加量。 还公开了纳米晶体的群体，制备纳米晶体的方法，组合物和包括纳米晶体的器件。

    Blue emitting semiconductor nanocrystals and compositions and devices including same
    37.
    发明授权
    Blue emitting semiconductor nanocrystals and compositions and devices including same 有权
    蓝色发光半导体纳米晶体及其组成和装置，包括它们

    公开(公告)号：US09534172B2

    公开(公告)日：2017-01-03

    申请号：US14563531

    申请日：2014-12-08

    Applicant: QD VISION, INC.

    Inventor： Craig Breen ,  Jonathan S. Steckel ,  Dorai Ramprasad

    IPC: C09K11/88 ,  C09K11/02 ,  C09K11/56 ,  C09K11/57 ,  C09K11/08 ,  B82Y20/00 ,  B82Y30/00 ,  H01L33/06

    CPC classification number: C09K11/883 ,  B82Y20/00 ,  B82Y30/00 ,  C09K11/02 ,  C09K11/025 ,  C09K11/0811 ,  C09K11/565 ,  C09K11/574 ,  H01L33/06 ,  Y10S428/917 ,  Y10T428/2991 ,  Y10T428/2993

    Abstract: A semiconductor nanocrystal capable of emitting blue light upon excitation. Also disclosed are devices, populations of semiconductor nanocrystals, and compositions including a semiconductor nanocrystal capable of emitting blue light upon excitation. In one embodiment, a semiconductor nanocrystal capable of emitting blue light including a maximum peak emission at a wavelength not greater than about 470 nm with a photoluminescence quantum efficiency greater than about 65% upon excitation. In another embodiment, a semiconductor nanocrystal includes a core comprising a first semiconductor material comprising at least three chemical elements and a shell disposed over at least a portion of the core, the shell comprising a second semiconductor material, wherein the semiconductor nanocrystal is capable of emitting blue light with a photoluminescence quantum efficiency greater than about 65% upon excitation. In a further embodiment, a semiconductor nanocrystal includes a core comprising a first semiconductor material comprising at least three chemical elements and a shell disposed over at least a portion of the core, the shell comprising a second semiconductor material comprising at least three chemical elements, wherein the semiconductor nanocrystal is capable of emitting light including a maximum peak emission in the blue region of the spectrum upon excitation.

    Abstract translation: 激发后能够发出蓝光的半导体纳米晶体。 还公开了半导体纳米晶体的器件，群体，以及包括在激发时能够发射蓝光的半导体纳米晶体的组合物。 在一个实施方案中，能够发射包括波长不大于约470nm的最大峰值发射的蓝光的半导体纳米晶体，其光致发光量子效率在激发时大于约65％。 在另一个实施例中，半导体纳米晶体包括芯，其包含包含至少三个化学元素的第一半导体材料和设置在芯的至少一部分上的壳，壳包括第二半导体材料，其中半导体纳米晶体能够发射 激发后光致发光量子效率大于约65％的蓝光。 在另一实施例中，半导体纳米晶体包括芯，其包括包含至少三个化学元件的第一半导体材料和设置在芯的至少一部分上的外壳，壳包括包含至少三个化学元素的第二半导体材料，其中 半导体纳米晶体在激发时能够发射包括光谱的蓝色区域中的最大峰值发射的光。

    Functionalized nanoparticles and method
    38.
    发明授权
    Functionalized nanoparticles and method 有权

    公开(公告)号：US09534168B2

    公开(公告)日：2017-01-03

    申请号：US14500290

    申请日：2014-09-29

    Applicant: QD VISION, INC.

    Inventor： Craig Breen ,  Marshall Cox ,  Jonathan S. Steckel

    IPC: C09K11/02 ,  B82Y30/00 ,  C09K11/56 ,  C09K11/88 ,  C30B29/60 ,  C30B33/00 ,  G01N33/543 ,  G01N33/58 ,  B82Y20/00

    CPC classification number: C09K11/025 ,  B82Y20/00 ,  B82Y30/00 ,  C09K11/565 ,  C09K11/881 ,  C09K11/883 ,  C30B29/605 ,  C30B33/00 ,  G01N33/54346 ,  G01N33/587 ,  Y10S977/774 ,  Y10S977/95

    Abstract: A nanoparticle including an inorganic core comprising at least one metal and/or at least one semi-conductor compound comprising at least one metal includes a coating or shell disposed over at least a portion of a surface of the core. The coating can include one or more layers. Each layer of the coating can comprise a metal and/or at least one semiconductor compound. The nanoparticle further includes a ligand attached to a surface of the coating. The ligand is represented by the formula: X-Sp-Z, wherein X represents, e.g., a primary amine group, a secondary amine group, a urea, a thiourea, an imidizole group, an amide group, a phosphonic or arsonic acid group, a phosphinic or arsinic acid group, a phosphate or arsenate group, a phosphine or arsine oxide group; Sp represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; and Z represents: (i) a reactive group capable of communicating specific chemical properties to the nanocrystal as well as provide specific chemical reactivity to the surface of the nanocrystal, and/or (ii) a group that is cyclic, halogenated, or polar a-protic. In certain embodiments, at least two chemically distinct ligands are attached to an surface of the coating, wherein the at least two ligands (I and II) are represented by the formula: X-Sp-Z. In ligand (I) X represents a phosphonic, phosphinic, or phosphategroup and in ligand (II) X represents a primary or secondary amine, or an imidizole, or an amide; In both ligands (I) and (II) Sp, which can be the same or different in the two compounds, represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; Z, which can be the same or different in the two compounds, is a group chosen from among groups capable of communicating specific chemical properties to the nanoparticle as well as provide specific chemical reactivity to the surface of the nanoparticle. In preferred embodiments, the nanoparticle includes a core comprising a semiconductor material.

Patent Agency Ranking