公开(公告)号：US20150044806A1

公开(公告)日：2015-02-12

申请号：US14461070

申请日：2014-08-15

Applicant: QD Vision, Inc.

Inventor： CRAIG A. BREEN ,  MAYANK PURI

IPC: H01L51/56

CPC classification number: H01L51/56 ,  B82Y40/00 ,  H01L21/02469 ,  H01L21/02513 ,  H01L21/02551 ,  H01L21/02601 ,  H01L21/02628

Abstract: A method for preparing semiconductor nanocrystals including a core and an overcoating layer is disclosed. According to one aspect of the invention, the method comprises preparing more than one batch of cores comprising a first semiconductor material and having a maximum emission peak within a predetermined spectral region, wherein each batch of cores is characterized by a first excitonic absorption peak at an absorption wavelength and a maximum emission peak at an emission wavelength; selecting a batch of cores from the batches prepared wherein the selected batch is characterized by a difference between the absorption wavelength and the emission wavelength that is less than or equal to 13; and overcoating the cores of the selected batch with a layer comprising a second semiconductor material.

Abstract translation: 公开了一种制备包括芯和外涂层的半导体纳米晶体的方法。 根据本发明的一个方面，该方法包括制备包括第一半导体材料并且在预定光谱区内具有最大发射峰值的多于一批的核心，其中每批核心的特征在于第一激子吸收峰在 吸收波长和发射波长处的最大发射峰; 从制备的批次中选择一批核心，其中所选批次的特征在于吸收波长和发射波长之间的差小于或等于13; 以及用包括第二半导体材料的层覆盖所选批次的芯。

公开(公告)号：US20150028305A1

公开(公告)日：2015-01-29

申请号：US14323900

申请日：2014-07-03

Applicant: QD VISION, INC.

Inventor： YUHUA NIU ,  PETER T. KAZLAS

IPC: H01L51/52 ,  H01L51/56

Abstract: A method for preparing a light emitting device comprising: disposing an electron-injection layer comprising a metal oxide on a cathode, disposing a first layer adjacent the electron-injection layer, the first layer comprising a small molecule material with a bandgap of at least about 3 eV capable of blocking holes, forming an emissive layer comprising quantum dots capable of emitting blue light upon excitation at a surface of the first layer opposite the electron-injection layer; disposing a second layer comprising a material capable of transporting holes and blocking electrons with a bandgap of at least about 3 eV adjacent a surface of the emissive layer opposite the first layer, and disposing an anode over the second layer. A light-emitting device is also disclosed.

Abstract translation: 一种制备发光器件的方法，包括：在阴极上设置包含金属氧化物的电子注入层，在电子注入层附近设置第一层，第一层包含小分子材料，带隙至少约为 3eV，能够阻挡空穴，形成发射层，发射层包括在与电子注入层相对的第一层的表面上激发时能够发射蓝光的量子点; 设置第二层，其包括能够传输空穴并阻挡电子的材料，所述材料具有邻近所述发射层的与所述第一层相对的表面的至少约3eV的带隙，并且在所述第二层上设置阳极。 还公开了一种发光器件。

公开(公告)号：US20150021521A1

公开(公告)日：2015-01-22

申请号：US14284277

申请日：2014-05-21

Applicant: QD VISION, INC.

Inventor： ROBERT J. NICK ,  CRAIG BREEN

IPC: C09K11/02 ,  C09K11/88

CPC classification number: C09K11/025 ,  B82Y20/00 ,  C09K11/02 ,  C09K11/565 ,  C09K11/883 ,  Y10S977/774

Abstract: The present invention relates to a composition including quantum dots and an emission stabilizer, products including same, and methods, including methods for improving, or enhancing the emission stability of quantum dots. Inclusion of an emission stabilizer in a composition can improve or enhance the stability of at least one emissive property of the quantum dots in the composition against degradation compared to a composition that is the same in all respects except that it does not include the emission stabilizer. Examples of such emissive properties include, by way of example only, lumen output, lumen stability, color point (e.g., CIE x, CIE y) stability, wavelength stability, FWHM of the major peak emission, absorption, solid state EQE, and quantum dot emission efficiency.

Abstract translation: 本发明涉及包含量子点和发射稳定剂的组合物，包括其的产品，以及包括改进或提高量子点的发光稳定性的方法。 在组合物中包含发射稳定剂可以改善或增强组合物中量子点的至少一种发射性质与不同于所有方面相同的组合物的降解的稳定性，不同之处在于它不包括发射稳定剂。 这样的发射性质的实例仅包括流明输出，管腔稳定性，色点（例如，CIE x，CIE y）稳定性，波长稳定性，主峰发射的FWHM，吸收，固态EQE和量子 点排放效率。

公开(公告)号：US20150014625A1

公开(公告)日：2015-01-15

申请号：US14311542

申请日：2014-06-23

Applicant: QD Vision, Inc.

Inventor： Seth Coe-Sullivan ,  Peter T. Kazlas

IPC: H01L33/04 ,  H01L33/58 ,  H01L33/42 ,  H01L33/60 ,  H01L33/50

CPC classification number: H01L33/06 ,  H01L27/322 ,  H01L31/035218 ,  H01L33/04 ,  H01L33/42 ,  H01L33/50 ,  H01L33/507 ,  H01L33/58 ,  H01L33/60 ,  H01L51/5036 ,  H01L51/5088 ,  H01L51/5268 ,  H01L51/56 ,  H01L2251/5369 ,  H05B33/145 ,  Y10S977/774

Abstract: A component including a substrate, at least one layer including a color conversion material comprising quantum dots disposed over the substrate, and a layer comprising a conductive material (e.g., indium-tin-oxide) disposed over the at least one layer. (Embodiments of such component are also referred to herein as a QD light-enhancement substrate (QD-LES).) In certain preferred embodiments, the substrate is transparent to light, for example, visible light, ultraviolet light, and/or infrared radiation. In certain embodiments, the substrate is flexible. In certain embodiments, the substrate includes an outcoupling element (e.g., a microlens array). A film including a color conversion material comprising quantum dots and a conductive material is also provided. In certain embodiments, a component includes a film described herein. Lighting devices are also provided. In certain embodiments, a lighting device includes a film described herein. In certain embodiments, a lighting device includes a component described herein.

Abstract translation: 包括衬底的组件，包括设置在衬底上的包括量子点的颜色转换材料的至少一个层以及设置在至少一个层上的导电材料（例如，氧化铟锡）的层。 （这种组件的实施例在本文中也称为QD光增强基板（QD-LES）。）在某些优选实施例中，基板对光是透明的，例如可见光，紫外光和/或红外辐射 。 在某些实施方案中，基底是柔性的。 在某些实施例中，衬底包括外耦合元件（例如，微透镜阵列）。 还提供了包括包括量子点和导电材料的颜色转换材料的膜。 在某些实施方案中，组分包括本文所述的膜。 还提供照明设备。 在某些实施例中，照明装置包括本文所述的膜。 在某些实施例中，照明装置包括本文所述的部件。

公开(公告)号：US20150013589A1

公开(公告)日：2015-01-15

申请号：US14284251

申请日：2014-05-21

Applicant: QD VISION, INC.

Inventor： WENHAO LIU ,  CRAIG BREEN

IPC: C30B7/14 ,  C30B29/48 ,  C30B7/08 ,  C30B29/68 ,  C30B7/00 ,  C30B19/12

CPC classification number: C30B7/14 ,  B22F1/0018 ,  B22F9/24 ,  B82Y30/00 ,  B82Y40/00 ,  C30B7/005 ,  C30B7/08 ,  C30B19/12 ,  C30B29/48 ,  C30B29/68 ,  H01L21/02521 ,  H01L21/02557 ,  H01L21/0256 ,  H01L21/02601 ,  H01L21/02628 ,  H01L21/10

Abstract: Quantum dots and methods of making quantum dots are provided.

公开(公告)号：US20150004775A1

公开(公告)日：2015-01-01

申请号：US14296185

申请日：2014-06-04

Applicant: QD VISION, INC.

Inventor： DIYUN HUANG ,  JONATHAN S. STECKEL

IPC: H01L21/02 ,  H01L29/06 ,  H01L29/24

CPC classification number: H01L29/0665 ,  C30B7/14 ,  C30B29/40 ,  C30B29/46 ,  C30B29/48 ,  C30B29/60 ,  H01L21/02543 ,  H01L21/02557 ,  H01L21/0262

Abstract: Disclosed is a method for preparing a semiconductor nanocrystal, comprising: forming a reaction mixture comprising injecting one or more first semiconductor nanocrystal precursors including one or more Group V elements and one or more Group VI elements into a mixture including one or more second semiconductor nanocrystal precursors including one or more Group II elements and one or more Group III elements at a first temperature; and reacting the first and second semiconductor nanocrystal precursors in the reaction mixture at a second temperature for a period time sufficient to form a semiconductor nanocrystal core comprising at least a portion of the one or more Group II elements, one or more Group III elements, one or more Group V elements, and one or more Group VI elements included in the first and second semiconductor nanocrystal precursors, wherein the second temperature is greater than the first temperature.

Abstract translation: 公开了一种制备半导体纳米晶体的方法，包括：形成反应混合物，其包括将包含一种或多种V族元素和一种或多种VI族元素的一种或多种第一半导体纳米晶体前体注入包含一种或多种第二半导体纳米晶体前体 包括在第一温度下的一种或多种II族元素和一种或多种III族元素; 以及使反应混合物中的第一和第二半导体纳米晶体前体在第二温度下反应一段时间足以形成半导体纳米晶核，所述半导体纳米晶核包含至少一部分第一族元素，一种或多种III族元素，一种或多种III族元素 或更多的V族元素，以及包含在第一和第二半导体纳米晶体前体中的一种或多种VI族元素，其中第二温度大于第一温度。

公开(公告)号：US20140322901A1

公开(公告)日：2014-10-30

申请号：US14193839

申请日：2014-02-28

Applicant: QD VISION, INC.

Inventor： DIYUN HUANG ,  CHUNMING WANG ,  ZHIMING WANG ,  JONATHAN S. STECKEL

IPC: H01L21/02

CPC classification number: H01L21/02628 ,  C01G15/006 ,  H01L21/0237 ,  H01L21/02521 ,  H01L21/02601

Abstract: A method for preparing semiconductor nanocrystals includes adding a non-protonated surface modification agent to semiconductor nanocrystal cores in a liquid medium to form a mixture; adding one or more precursors for forming a shell including a semiconductor material to the mixture under conditions for forming the shell over at least a portion of an outer surface of the cores, and adding an acid ligand to the mixture after addition of at least a portion of the one or more precursors. Semiconductor nanocrystals, other methods of making semiconductor nanocrystals, compositions and products including semiconductor nanocrystals are also disclosed.

Abstract translation: 制备半导体纳米晶体的方法包括在液体介质中向半导体纳米晶核添加非质子化表面改性剂以形成混合物; 在形成所述壳体的至少一部分所述核心的至少一部分的条件下，向所述混合物中加入一种或多种用于形成包含半导体材料的壳体的前体，以及在加入至少一部分之后向所述混合物中加入酸配体 的一种或多种前体。 还公开了半导体纳米晶体，制备半导体纳米晶体的其它方法，组合物和包括半导体纳米晶体的产品。

公开(公告)号：US20140284549A1

公开(公告)日：2014-09-25

申请号：US14215215

申请日：2014-03-17

Applicant: QD VISION, INC.

Inventor： WENHAO LIU ,  PETER M. ALLEN ,  ANNIE CHO WON ,  ZHIMING WANG ,  CRAIG A. BREEN

IPC: H01L33/24 ,  H01L33/26 ,  H01L33/06 ,  H01L33/00

CPC classification number: C09K11/883 ,  C09D11/52 ,  C09K11/025 ,  C09K11/565 ,  H01L33/06 ,  H01L33/24 ,  H01L33/26

Abstract: A semiconductor nanocrystal that emits green light having a peak emission with a full width at half maximum of about 30 nm or less at 100° C. and a method of making coated semiconductor nanocrystals are provided. Materials and other products including semiconductor nanocrystals described herein and materials and other products including semiconductor nanocrystals prepared by a method described herein are also disclosed.

Abstract translation: 提供了在100℃下发射半峰全宽为约30nm或更小的峰值发射的绿光的半导体纳米晶体，以及制备涂覆的半导体纳米晶体的方法。 还公开了包括本文所述的半导体纳米晶体的材料和其它产品以及通过本文所述的方法制备的包括半导体纳米晶体的材料和其它产品。

公开(公告)号：US20140234999A1

公开(公告)日：2014-08-21

申请号：US14076409

申请日：2013-11-11

Applicant: QD VISION, INC.

Inventor： SANG-JIN KIM ,  MATTHEW STEVENSON ,  GAGAN MAHAN ,  PETER T. KAZLAS

IPC: H01L33/00 ,  H01L33/06

CPC classification number: H01L33/005 ,  C09K11/02 ,  C09K11/565 ,  C09K11/883 ,  H01L33/06 ,  H01L33/08 ,  H01L51/502 ,  H01L51/5237 ,  H01L51/56 ,  H01L2933/005 ,  H05B33/10 ,  H05B33/14

Abstract: A method of processing quantum dots is disclosed. The method comprises applying energy to excite the quantum dots to emit light and placing the quantum dots under vacuum after excitation of the quantum dots. Also disclosed is a method of processing a component including quantum dots comprising applying energy to the component including quantum dots to excite the quantum dots to emit light; and placing the component including quantum dots under vacuum after excitation. A method for processing a device is further disclosed, the method comprising applying energy to the device to excite the quantum dots to emit light; and placing the device under vacuum after excitation of the quantum dots. A method for preparing a device is also disclosed. Quantum dots, component, and devices of the methods are also disclosed.

Abstract translation: 公开了一种处理量子点的方法。 该方法包括施加能量以激发量子点发光并在量子点激发之后将量子点置于真空下。 还公开了一种处理包括量子点的部件的方法，包括向包括量子点的部件施加能量以激发量子点发光; 激发后将包含量子点的成分置于真空下。 还公开了一种处理器件的方法，该方法包括向器件施加能量以激发量子点发光; 并且在激发量子点之后将器件置于真空下。 还公开了一种用于制备器件的方法。 还公开了该方法的量子点，分量和装置。

公开(公告)号：US20140021440A1

公开(公告)日：2014-01-23

申请号：US13910788

申请日：2013-06-05

Applicant: QD VISION, INC.

Inventor： GAGAN MAHAN ,  PETER T. KAZLAS

IPC: H01L33/58

CPC classification number: H01L33/58 ,  F21K9/61 ,  F21S6/00 ,  F21Y2103/00 ,  F21Y2115/10 ,  G02B6/0003

Abstract: A lighting device including an emissive material comprising quantum dots and a liquid medium disposed within a sealed container with at least a portion of a light guiding member disposed within the sealed container. Products including a lighting device in accordance with the invention are also disclosed.

Abstract translation: 一种照明装置，包括包含量子点的发光材料和设置在密封容器内的液体介质，其中至少一部分引导构件设置在密封容器内。 还公开了包括根据本发明的照明装置的产品。