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    Functionalized nanoparticles and method
    1.
    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.

    DEVICE INCLUDING SEMICONDUCTOR NANOCRYSTALS & METHOD
    3.
    发明申请
    DEVICE INCLUDING SEMICONDUCTOR NANOCRYSTALS & METHOD 审中-公开
    包括半导体纳米晶体和方法的器件

    公开(公告)号：US20140054540A1

    公开(公告)日：2014-02-27

    申请号：US13900272

    申请日：2013-05-22

    Applicant: QD Vision, Inc.

    Inventor： Zhaoqun Zhou ,  Peter T. Kazlas ,  Marshall Cox

    IPC: H01L29/06 ,  H01L33/06 ,  H01L33/00 ,  H01L31/0352 ,  H01L21/02 ,  H01L31/18

    CPC classification number: H01L29/0665 ,  H01L21/02601 ,  H01L31/035209 ,  H01L31/035218 ,  H01L31/18 ,  H01L33/005 ,  H01L33/06 ,  H01L51/0036 ,  H01L51/0037 ,  H01L51/426 ,  H01L2251/308 ,  Y02E10/549 ,  Y02P70/521

    Abstract: A method of making a device comprising semiconductor nanocrystals comprises forming a first layer capable of transporting charge over a first electrode, wherein forming the first layer comprises disposing a metal layer over the first electrode and oxidizing at least the surface of the metal layer opposite the first electrode to form a metal oxide, disposing a layer comprising semiconductor nanocrystals over the oxidized metal surface, and disposing a second electrode over the layer comprising semiconductor nanocrystals. A device comprises a layer comprising semiconductor nanocrystals disposed between a first electrode and a second electrode, and a first layer capable of transporting charge disposed between the layer comprising semiconductor nanocrystals one of the electrodes, wherein the first layer capable of transporting charge comprises a metal layer wherein at least the surface of the metal layer facing the layer comprising semiconductor nanocrystals is oxidized prior to disposing semiconductor nanocrystals thereover.

    Abstract translation: 制造包含半导体纳米晶体的器件的方法包括形成能够在第一电极上传输电荷的第一层，其中形成第一层包括在第一电极上设置金属层，并至少将金属层的表面氧化成与第一电极相对的第一层 电极以形成金属氧化物，在氧化的金属表面上设置包含半导体纳米晶体的层，以及在包含半导体纳米晶体的层上设置第二电极。 一种器件包括设置在第一电极和第二电极之间的包含半导体纳米晶体的层，以及能够传输设置在包括半导体纳米晶体的层之间的电荷的第一层，其中电极的一个电极包括金属层 其中至少在面向包含半导体纳米晶体的层的金属层的表面在其上设置半导体纳米晶体之前被氧化。

    DEVICE INCLUDING QUANTUM DOTS
    6.
    发明申请
    DEVICE INCLUDING QUANTUM DOTS 审中-公开
    包括量子的设备

    公开(公告)号：US20140027713A1

    公开(公告)日：2014-01-30

    申请号：US14042074

    申请日：2013-09-30

    Applicant: QD Vision, Inc.

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

    IPC: H01L33/04 ,  H01L33/00

    CPC classification number: H01L33/04 ,  H01L21/02439 ,  H01L21/02491 ,  H01L21/02502 ,  H01L21/02521 ,  H01L21/0256 ,  H01L21/02601 ,  H01L33/005 ,  H01L33/0087 ,  H01L33/06 ,  H01L33/28 ,  H01L33/30 ,  H01L51/502

    Abstract: A method for making a device, the method comprising: depositing a layer comprising quantum dots over a first electrode, the quantum dots including ligands attached to the outer surfaces thereof; treating the surface of the deposited layer comprising quantum dots to remove the exposed ligands; and forming a device layer thereover. Also disclosed is a device made in accordance with the disclosed method. Another aspect of the invention relates to a device comprising a first electrode and a second electrode, and a layer comprising quantum dots between the two electrodes, the layer comprising quantum dots deposited from a dispersion that have been treated to remove exposed ligands after formation of the layer in the device. Another aspect of the invention relates to a device comprising a first electrode and a second electrode, a layer comprising a first inorganic semiconductor material disposed between the first and second electrodes, and a plurality of quantum dots disposed between the first and second electrodes, the outer surface of the quantum dots comprising a second inorganic semiconductor material, wherein the composition of the first inorganic semiconductor material and the second inorganic semiconductor material is the same (without regard to any ligands on the outer surface of the quantum dot).

    Abstract translation: 一种制造器件的方法，所述方法包括：在第一电极上沉积包含量子点的层，所述量子点包括附着于其外表面的配体; 处理包含量子点的沉积层的表面以除去暴露的配体; 并在其上形成器件层。 还公开了根据所公开的方法制造的装置。 本发明的另一方面涉及一种包括第一电极和第二电极的装置，以及在两个电极之间包含量子点的层，该层包括从分散体沉积的量子点，所述分散体在形成之后已被处理以除去暴露的配体 设备中的层。 本发明的另一方面涉及一种包括第一电极和第二电极的装置，包括设置在第一和第二电极之间的第一无机半导体材料的层和设置在第一和第二电极之间的多个量子点，外部 包括第二无机半导体材料的量子点的表面，其中第一无机半导体材料和第二无机半导体材料的组成相同（不考虑量子点的外表面上的任何配体）。

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