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公开(公告)号：US11670665B2
公开(公告)日：2023-06-06
申请号：US16919328
申请日：2020-07-02
发明人： Kyungsang Cho , Hojung Kim , Chanwook Baik
IPC分类号： H01L27/146 , H01L31/0352 , H01L31/112
CPC分类号： H01L27/14679 , H01L27/1461 , H01L27/1462 , H01L27/14612 , H01L27/14683 , H01L31/035218 , H01L31/1129
摘要： Provided are opto-electronic devices with low dark noise and high signal-to-noise ratio and methods of manufacturing the same. An opto-electronic device may include: a semiconductor substrate; a light receiving unit formed in the semiconductor substrate; and a driving circuit arranged on a surface of the semiconductor substrate. The light receiving unit may include: a first semiconductor layer partially arranged in an upper region of the semiconductor substrate and doped with a first conductivity type impurity; a second semiconductor layer arranged on the first semiconductor layer and doped with a second conductivity type impurity; a transparent matrix layer arranged on an upper surface of the second semiconductor layer; a plurality of quantum dots arranged to contact the transparent matrix layer; and a first electrode and a second electrode electrically connected to the second semiconductor layer and respectively arranged on both sides of the transparent matrix layer.
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公开(公告)号：US11646393B2
公开(公告)日：2023-05-09
申请号：US17036962
申请日：2020-09-29
发明人： Hojung Kim , Chanwook Baik , Kyungsang Cho
CPC分类号： H01L33/06 , H01L33/387 , H01L33/42 , H01L33/62
摘要： Provided is an opto-electronic device including a semiconductor substrate doped with a first conductivity type impurity, a source region and a drain region provided on the semiconductor substrate spaced apart from each other and doped with a second conductivity type impurity which is electrically opposite to the first conductivity type impurity, a first electrode and a second electrode electrically connected to the source region and the drain region, respectively, a quantum dot layer provided between the source region and the drain region on the semiconductor substrate and including quantum dots, a first insulation layer configured to insulate the semiconductor substrate and the quantum dot layer from each other, and a transparent electrode layer provided on the quantum dot layer.
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公开(公告)号：US11137286B2
公开(公告)日：2021-10-05
申请号：US15888754
申请日：2018-02-05
发明人： Kyungsang Cho
摘要： Provided are a filter array, a spectral detector including the filter array, and a spectrometer employing the spectral detector. The filter array may have a multi-array structure including a plurality of filter arrays. The filter array may include a first filter array having a first structure in which a plurality of first filters with different transmittance spectrums are arranged, and a second filter array having a second structure in which a plurality of second filters with different transmittance spectrums are arranged, the second filter array being arranged to at least partially overlap the first filter array at a first position relative to the first filter array so that the multi-arrangement type filter array has a first set of absorbance characteristics. The second filter array may be configurable to be arranged to at least partially overlap the first filter array at a second position relative to the first filter array so that the multi-arrangement type filter array has a second set of absorbance characteristics different from the first set of absorbance characteristics.
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公开(公告)号：US11862743B2
公开(公告)日：2024-01-02
申请号：US17459686
申请日：2021-08-27
发明人： Chanwook Baik , Kyungsang Cho , Hojung Kim , Yooseong Yang
IPC分类号： H01L31/0384 , H01L31/112 , H01L31/113 , H01L31/0216 , H01L27/146 , H01L31/0336
CPC分类号： H01L31/03845 , H01L27/14643 , H01L27/14679 , H01L31/02161 , H01L31/1126 , H01L31/1136 , H01L31/0336
摘要： An opto-electronic device includes a base portion, a first electrode and a second electrode formed on an upper surface of the base portion apart from each other, a quantum dot layer, and a bank structure. The quantum dot layer is between the first electrode and the second electrode on the base portion and includes a plurality of quantum dots. The bank structure covers at least partial regions of the first electrode and the second electrode, defines a region where the quantum dot layer is formed, and is formed of an inorganic material.
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公开(公告)号：US20210376190A1
公开(公告)日：2021-12-02
申请号：US17036962
申请日：2020-09-29
发明人： Hojung Kim , Chanwook Baik , Kyungsang Cho
摘要： Provided is an opto-electronic device including a semiconductor substrate doped with a first conductivity type impurity, a source region and a drain region provided on the semiconductor substrate spaced apart from each other and doped with a second conductivity type impurity which is electrically opposite to the first conductivity type impurity, a first electrode and a second electrode electrically connected to the source region and the drain region, respectively, a quantum dot layer provided between the source region and the drain region on the semiconductor substrate and including quantum dots, a first insulation layer configured to insulate the semiconductor substrate and the quantum dot layer from each other, and a transparent electrode layer provided on the quantum dot layer.
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公开(公告)号：US10388224B2
公开(公告)日：2019-08-20
申请号：US15450128
申请日：2017-03-06
发明人： Hyochul Kim , Yeonsang Park , Kyungsang Cho , Weonkyu Koh , Younggeun Roh
IPC分类号： H01L33/06 , H01S5/02 , H01S5/125 , G09G3/3258 , G01J1/08 , G02B27/42 , H01L33/44 , H01L51/50 , H01L51/52 , H01L27/32
摘要： A quantum dot light emitting device includes a grating device which includes a grating region that has a particular grating interval, and a quantum dot layer located above the grating region. The device provides high-purity color light based on a selection of a wavelength band by the grating region in correspondence with a wavelength band of light emitted from the quantum dot layer.
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公开(公告)号：US09905790B2
公开(公告)日：2018-02-27
申请号：US15091650
申请日：2016-04-06
发明人： Weonkyu Koh , Taeho Shin , Kyungsang Cho
CPC分类号： H01L51/502 , H01L51/426 , H01L51/4273 , H01L51/5072 , H01L51/5088 , H01L51/5096 , H01L2251/305 , Y02E10/549
摘要： 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：US09492840B2
公开(公告)日：2016-11-15
申请号：US14556613
申请日：2014-12-01
发明人： Seung Yeon Lee , Jun Ho Lee , Kyungsang Cho , Young Suk Jung
CPC分类号： 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
摘要： 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.
摘要翻译： 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：US12122951B2
公开(公告)日：2024-10-22
申请号：US17571738
申请日：2022-01-10
发明人： Kyungsang Cho , Sohee Jeong , Taewan Kim , Yooseong Yang , Seongmin Park
CPC分类号： C09K11/7492 , C01G28/00 , C09K11/883 , B82Y20/00 , B82Y40/00 , C01P2004/64
摘要： 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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10.发明授权公开(公告)号：US11913832B2
公开(公告)日：2024-02-27
申请号：US17459942
申请日：2021-08-27
发明人： Kyungsang Cho
CPC分类号： G01J3/0229 , G01J3/0291 , G01J3/2803 , G01J3/51 , G02B5/201 , G02B5/206 , G01J2003/1217 , G01J2003/1221 , G01J2003/2806 , G01J2003/516
摘要： Provided are a filter array, a spectral detector including the filter array, and a spectrometer employing the spectral detector. The filter array may have a multi-array structure including a plurality of filter arrays. The filter array may include a first filter array having a first structure in which a plurality of first filters with different transmittance spectrums are arranged, and a second filter array having a second structure in which a plurality of second filters with different transmittance spectrums are arranged, the second filter array being arranged to at least partially overlap the first filter array at a first position relative to the first filter array so that the multi-arrangement type filter array has a first set of absorbance characteristics. The second filter array may be configurable to be arranged to at least partially overlap the first filter array at a second position relative to the first filter array so that the multi-arrangement type filter array has a second set of absorbance characteristics different from the first set of absorbance characteristics.
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