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。

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。

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。

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.

公开(公告)号：US08906265B2

公开(公告)日：2014-12-09

申请号：US13849676

申请日：2013-03-25

Applicant: QD Vision, Inc.

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

IPC: C09K11/02 ,  C09K11/54 ,  C09K11/56 ,  C09K11/88 ,  B82Y30/00 ,  H01L33/06 ,  B82Y20/00

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。

公开(公告)号：US20170022628A1

公开(公告)日：2017-01-26

申请号：US15082136

申请日：2016-03-28

Applicant: QD Vision, Inc.

Inventor： Craig Breen ,  John R. Linton

IPC: C30B7/14 ,  F21V8/00 ,  C30B29/48

CPC classification number: C30B7/14 ,  B82Y20/00 ,  B82Y30/00 ,  C30B29/48 ,  C30B29/60 ,  G02B6/0023 ,  G02B6/0033 ,  G02B6/0041 ,  G02B6/0043 ,  G02B6/0065 ,  Y10S977/774 ,  Y10S977/824 ,  Y10S977/896 ,  Y10S977/95

Abstract: The present inventions relate to optical components which include quantum confined semiconductor nanoparticles, wherein at least a portion of the nanoparticles include a ligand attached to a surface thereof, the ligand being represented by the formula X-Sp-Z, wherein: X represents: a primary amine group, a secondary amine group, a urea, a thiourea, an imidizole group, an amide group, a carboxylic acid or carboxylate group, a phosphonic or arsonic acid group, a phosphoric acid group, a phosphate group, a phosphite group, a phosphinic acid group, a phosphinate group, a phosphine oxide group, a phosphinite group, a phosphine group, an arsenic acid group, an arsenate group, an arsenous acid group, an arsenite group, an arsinic acid group, an arsine oxide group, or an arsine group; Sp represents a group capable of allowing a transfer of charge or an insulating group; and Z represents a multifunctional group including three or more functional groups capable of communicating a specific property or chemical reactivity to the nanoparticle, wherein at least three of the functional groups are chemically distinct, and wherein Z is not reactive upon exposure to light. As used herein, the term “optical components” includes, but is not limited to, optical components, systems including optical components, lamps including optical components, devices including optical components, films useful in the foregoing, inks useful in making the foregoing, and compositions useful in the foregoing.

Abstract translation: 本发明涉及包括量子限制半导体纳米颗粒的光学部件，其中至少一部分纳米颗粒包括与其表面连接的配体，该配体由式X-Sp-Z表示，其中：X表示：a 伯胺基，仲胺基，脲，硫脲，亚氨基咪唑基，酰胺基，羧酸或羧酸酯基，膦酸或芳基酸基，磷酸基，磷酸酯基，亚磷酸酯基， 次膦酸基，次膦酸基，氧化膦基，亚磷酸基，膦基，砷酸基，砷酸酯基，亚砷酸基，亚砷酸酯基，亚磺酸基，氧化胂基， 或胂基; Sp表示能够允许电荷转移或绝缘组的组; Z表示包括三个或更多个能够与纳米颗粒通过特定性质或化学反应性的官能团的多官能团，其中至少三个官能团在化学上不同，并且其中Z在暴露于光时不具有反应性。 如本文所用，术语“光学部件”包括但不限于光学部件，包括光学部件的系统，包括光学部件的灯，包括光学部件的装置，可用于前述的膜，用于制造前述的油墨，以及 可用于上述的组合物。

公开(公告)号：US09136428B2

公开(公告)日：2015-09-15

申请号：US13740379

申请日：2013-01-14

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 ,  C01G28/00 ,  C01G30/00 ,  C09K11/02 ,  C09K11/70 ,  C09K11/88

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 population of nanocrystals 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 comprising at least three chemical elements and 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. Devices including nanocrystals are disclosed.

Abstract translation: 包括核心的纳米晶体群包括包含元素周期表第IIIA族元素的一种或多种元素的第一半导体材料和元素周期表第VA族元素的一种或多种元素的核心，以及设置在至少一部分上的壳 所述壳体包括第二半导体材料，其中所述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。 还公开了纳米晶体，其包含纳米晶核和壳，其包含半导体材料，所述半导体材料包含至少三种化学元素，并且可通过包括将半导体材料的至少一种化学元素的前体从单独的源添加到纳米晶体 同时为半导体材料的其它化学元素添加量的前体。 公开了包括纳米晶体的器件。

公开(公告)号：US20130234109A1

公开(公告)日：2013-09-12

申请号：US13849676

申请日：2013-03-25

Applicant: QD VISION, INC.

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

IPC: 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。

公开(公告)号：US20130193407A1

公开(公告)日：2013-08-01

申请号：US13740379

申请日：2013-01-14

Applicant: QD VISION, INC.

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

IPC: H01L33/06

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 population of nanocrystals 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 comprising at least three chemical elements and 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. Devices including nanocrystals are disclosed.

Abstract translation: 包括核心的纳米晶体群包括包含元素周期表第IIIA族元素的一种或多种元素的第一半导体材料和元素周期表第VA族元素的一种或多种元素的核心，以及设置在至少一部分上的壳 所述壳体包括第二半导体材料，其中所述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。 还公开了纳米晶体，其包含纳米晶核和壳，其包含半导体材料，所述半导体材料包含至少三种化学元素，并且可通过包括将半导体材料的至少一种化学元素的前体从单独的源添加到纳米晶体 同时为半导体材料的其它化学元素添加量的前体。 公开了包括纳米晶体的器件。