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公开(公告)号：US20220149223A1
公开(公告)日：2022-05-12
申请号：US17443402
申请日：2021-07-26
发明人： Sooho LEE , Minki NAM , Sungwoon KIM , Jeongwoo PARK , Wanki BAE , Changhee LEE , Byeongguk JEONG
IPC分类号： H01L31/12 , H01L31/0384 , H01L31/103 , H01L31/18 , H01L27/32 , H01L51/56 , H01L51/50
摘要： An electronic device includes a semiconductor nanoparticle, and a method of manufacturing the semiconductor nanoparticle is additionally provided. The semiconductor nanoparticle includes: a core including a first element; and a shell covering at least a portion of a surface of the core and including a second element and a third element, wherein the first element, the second element, and the third element are different from each other, and the first element and the second element are chemically bonded to each other on the at least a portion of the surface of the core.
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公开(公告)号：US20210189233A1
公开(公告)日：2021-06-24
申请号：US16937088
申请日：2020-07-23
发明人： Yunku JUNG , Yunhyuk KO , Minki NAM , Sooho LEE
摘要： A method for producing a quantum dot composition includes providing a preliminary quantum dot composition containing a quantum dot to which a ligand is bonded and a free ligand, providing an adsorbent to the preliminary quantum dot composition, adsorbing the free ligand to the adsorbent, and removing a modified adsorbent to which the free ligand is adsorbed to provide a purified quantum dot composition. A light emitting element including the purified quantum dot composition may have superior luminous efficiency.
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公开(公告)号：US20210296605A1
公开(公告)日：2021-09-23
申请号：US17107411
申请日：2020-11-30
发明人： Junwoo PARK , Myoungjin PARK , Sooho LEE , Yunhyuk KO , Sungwoon KIM , Minki NAM , Jaekook HA
IPC分类号： H01L51/50
摘要： A light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode and including quantum dots; a hole transport region between the first electrode and the emission layer; and an electron sink layer between the emission layer and the hole transport region and including an electron transport material, wherein the electron transport material includes a metal, a metal oxide, a metal-containing material, or any combination thereof.
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公开(公告)号：US20210376278A1
公开(公告)日：2021-12-02
申请号：US17336011
申请日：2021-06-01
发明人： Sooho LEE , Changhee LEE , Hyunmi DOH
IPC分类号： H01L51/50 , H01L51/00 , H01L51/52 , H01L51/56 , C09K11/02 , C09K11/54 , C09K11/56 , C09K11/55 , C09K11/06
摘要： Provided are a light-emitting device, an electronic apparatus including the same, and a method of manufacturing the light-emitting device, wherein the light-emitting device includes: a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode, wherein the interlayer includes an emission layer and an electron transport layer, the electron transport layer is between the emission layer and the second electrode, and the electron transport layer includes an electron transport particle, the electron transport particle includes a core and a shell covering the core, the core includes an oxide, a chalcogenide, or any combination thereof, and the shell includes a chalcogenide, the chalcogenide of the core being the same as or different from the chalcogenide of the shell.
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公开(公告)号：US20240324272A1
公开(公告)日：2024-09-26
申请号：US18437551
申请日：2024-02-09
发明人： Yun Ku JUNG , Yunhyuk KO , Sehun KIM , Jonghoon KIM , Seung Uk NOH , Won-Jun PARK , Chul Soon PARK , Jongwoo SHIN , Sooho LEE , Jae Kook HA
IPC分类号： H10K50/16 , H10K102/00
CPC分类号： H10K50/166 , H10K2102/351
摘要： A light emitting device includes: a first electrode that is a reflective electrode; a first electron transport layer disposed on the first electrode; a second electron transport layer disposed on the first electron transport layer; an emission layer disposed on the second electron transport layer, and a second electrode positioned on the emission layer and that is a transflective electrode, wherein the first electron transport layer and the second electron transport layer include different metal oxides, and a thickness of the first electron transport layer is greater than a thickness of the second electron transport layer.
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公开(公告)号：US20210371737A1
公开(公告)日：2021-12-02
申请号：US17219442
申请日：2021-03-31
发明人： Yunku JUNG , Yunhyuk KO , Minki NAM , Sungwoon KIM , Junwoo PARK , Sooho LEE
摘要： A quantum dot composition includes a quantum dot and a ligand bonded to a surface of the quantum dot, wherein the ligand includes a head portion bonded to the surface of the quantum dot, and a tail portion containing a crosslinkable functional group. The quantum dot composition according to one or more embodiments may be applied to an emission layer of a light emitting element and a display device to improve luminous efficiency and service life of the light emitting element and the display device.
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