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公开(公告)号：US20250011648A1
公开(公告)日：2025-01-09
申请号：US18887277
申请日：2024-09-17
Inventor： Kyungsang CHO , Sohee JEONG , Taewan KIM , Yooseong YANG , Seongmin PARK
Abstract: According to an aspect, a method of preparing quantum dots includes a first operation of preparing a quantum dot seed solution; a second operation of growing a quantum dot by continuously injecting a quantum dot cluster solution into the quantum dot seed solution; a third operation of separating the grown quantum dot and dispersing the quantum dot in a solvent; and a fourth operation of further growing the quantum dot by continuously injecting the quantum dot cluster solution into the dispersed quantum dot.
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公开(公告)号：US20170117496A1
公开(公告)日：2017-04-27
申请号：US15091650
申请日：2016-04-06
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Weonkyu KOH , Taeho SHIN , Kyungsang CHO
IPC: H01L51/50
CPC classification number: H01L51/502 , H01L51/426 , H01L51/4273 , H01L51/5072 , H01L51/5088 , H01L51/5096 , H01L2251/305 , Y02E10/549
Abstract: Provided are optoelectronic devices including quantum dots. An optoelectronic device may include an active layer including a quantum dot and at least one molecular interlayer adjacent to the active layer. The active layer may be provided between two electrodes, and a charge transfer layer may be provided adjacent to the active layer. The molecular interlayer may be provided between the active layer and the charge transfer layer. The molecular interlayer may have a smaller amount of surface charge than the charge transfer layer. The molecular interlayer may include a nonionic material or a hydrophobic material. The charge transfer layer may include an electron transport layer, and the electron transport layer may include an inorganic semiconductor.
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公开(公告)号：US20170028448A1
公开(公告)日：2017-02-02
申请号：US15293448
申请日：2016-10-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Seung Yeon LEE , Jun Ho LEE , Kyungsang CHO , Young Suk JUNG
CPC classification number: B08B3/08 , B05D1/02 , B08B3/10 , B22F1/0018 , B22F1/0085 , B22F1/0088 , B82Y20/00 , C01B19/002 , C01B19/007 , C01P2002/82 , C01P2002/89 , C01P2004/04 , C01P2004/64 , C01P2006/40 , C09K11/025 , C09K11/565 , C09K11/883 , H01L33/06 , Y10S977/774 , Y10S977/95 , Y10T428/256
Abstract: A method for removing an organic ligand from a surface of a particle including: obtaining a particle having an organic ligand disposed on a surface thereof; contacting the particle with an alkylammonium salt represented by Chemical Formula 1: NR′4+A− Chemical Formula 1 wherein groups R′ are the same or different and are each independently hydrogen or a C1 to C20 alkyl group, provided that at least one group R′ is an alkyl group, and A is a hydroxide anion, a halide anion, a borohydride anion, a nitrate anion, a phosphate anion, or a sulfate anion; and heat-treating the particle to carry out a reaction between the alkylammonium salt and the organic ligand.
Abstract translation: 一种从颗粒表面除去有机配体的方法，包括：获得在其表面上具有有机配体的颗粒; 使颗粒与由化学式1表示的烷基铵盐接触：NR'4 + A-化学式1其中基团R'相同或不同，并且各自独立地为氢或C1至C20烷基，条件是至少一个基团 R'是烷基，A是氢氧根阴离子，卤素阴离子，硼氢化物阴离子，硝酸根阴离子，磷酸根阴离子或硫酸根阴离子; 并对该颗粒进行热处理以进行烷基铵盐和有机配体之间的反应。
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公开(公告)号：US20250063840A1
公开(公告)日：2025-02-20
申请号：US18937962
申请日：2024-11-05
Applicant: SAMSUNG ELECTRONICS CO.,LTD.
Inventor： Kyungsang CHO , Hojung KIM , Chanwook BAIK , Yooseong YANG
IPC: H01L27/146 , B82Y20/00
Abstract: Provided is an image sensor including a sensor array including a plurality of light-sensors respectively including an optoelectronic device, the optoelectronic device including a first electrode, a second electrode spaced apart from the first electrode, and an active layer provided between the first electrode and the second electrode, the active layer including a plurality of quantum dot layers having different energy bands, and a circuit including circuits respectively connected to the plurality of light-sensors and configured to readout an optoelectronic signal generated from each of the plurality of light-sensors.
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5.发明公开公开(公告)号：US20230163154A1
公开(公告)日：2023-05-25
申请号：US17990475
申请日：2022-11-18
Applicant: SAMSUNG ELECTRONICS CO., LTD. , MASSACHUSETTS INSTITUTE OF TECHNOLOGY , REGENTS OF THE UNIVERSITY OF MINNESOTA
Inventor： Chanwook BAIK , Jiaojian SHI , Keith A. NELSON , Sanghyun OH , Daehan YOO , Kyungsang CHO
IPC: H01L27/146
CPC classification number: H01L27/14665 , H01L27/14607
Abstract: A light conversion device includes a substrate; a plurality of metal patterns provided on the substrate and separated from each other; a metal layer provided on the substrate and surrounding each of the plurality of metal patterns; a first slit positioned between the metal layer and each of the plurality of metal patterns and surrounding each of the plurality of metal patterns; and a light-emitting layer filling the first slit. The first slit and the metal pattern surrounded by the first slit are concentric. The metal layer and the plurality of metal patterns are aligned so that a first electric field enhancement occurs when a wave belonging to an invisible light band is incident to the first slit.
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Patent Agency Ranking
公开(公告)号：US20230028578A1
公开(公告)日：2023-01-26
申请号：US17580145
申请日：2022-01-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyungsang CHO , Hojung KIM , Chanwook BAIK , Yooseong YANG
IPC: H01L27/146
Abstract: Provided is an image sensor including a sensor array including a plurality of light-sensors respectively including an optoelectronic device, the optoelectronic device including a first electrode, a second electrode spaced apart from the first electrode, and an active layer provided between the first electrode and the second electrode, the active layer including a plurality of quantum dot layers having different energy bands, and a circuit including circuits respectively connected to the plurality of light-sensors and configured to readout an optoelectronic signal generated from each of the plurality of light-sensors.
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公开(公告)号：US20200073032A1
公开(公告)日：2020-03-05
申请号：US16249592
申请日：2019-01-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyungsang CHO , Chanwook BAIK
Abstract: Provided are a light filter and a spectrometer including the light filter. The light filter includes at least one filter, wherein the at least one filter includes a liquid spectrum modulation layer having different transmittance spectra according to different positions on the at least one filter. The liquid spectrum modulation layer has different thicknesses according to the different positions on the at least one filter.
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公开(公告)号：US20210249465A1
公开(公告)日：2021-08-12
申请号：US16930574
申请日：2020-07-16
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyungsang CHO , Chanwook BAIK , Hojung KIM
IPC: H01L27/146 , H01L31/0352 , H01L31/0384 , H01L31/112
Abstract: Provided is an opto-electronic device having low dark noise and a high signal-to-noise ratio. The opto-electronic device may include: a first semiconductor layer doped to have a first conductivity type; a second semiconductor layer disposed on an upper surface of the first semiconductor layer and doped to have a second conductivity type electrically opposite to the first conductivity type; a transparent matrix layer disposed on an upper surface of the second semiconductor layer; a plurality of quantum dots arranged to be in contact with the transparent matrix layer; and a first electrode provided on a first side of the transparent matrix layer and a second electrode provided on a second side of the transparent matrix layer opposite to the first side, wherein the first electrode and the second electrode are electrically connected to the second semiconductor layer.
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9.发明申请公开(公告)号：US20200073033A1
公开(公告)日：2020-03-05
申请号：US16437832
申请日：2019-06-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chanwook BAIK , Kyungsang CHO
Abstract: An optical filter includes a first reflector including a plurality of first sub-wavelength structures that are two-dimensionally arranged and spaced apart by a first period based on a first rule, and a second reflector provided separate from the first reflector, the second reflector including a plurality of second sub-wavelength structures that are two-dimensionally arranged and spaced apart by a second period based on a second rule.
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公开(公告)号：US20190049296A1
公开(公告)日：2019-02-14
申请号：US15916914
申请日：2018-03-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyungsang CHO , Chanwook BAIK
CPC classification number: G01J3/0229 , G01J3/0256 , G01J3/2803 , G01J3/2823 , G01J2003/1213 , G01J2003/2806 , G01J2003/2813 , G02B5/201
Abstract: A light filter includes a plurality of spectrum modulation portions, each having a different thicknesses or a different mixing ratio of materials thereof. Each of the plurality of spectrum modulation portions has a different transmittance spectrum.
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