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公开(公告)号：US20240124771A1
公开(公告)日：2024-04-18
申请号：US18464970
申请日：2023-09-11
CPC分类号： C09K11/621 , C09K11/02 , C09K11/06
摘要： A quantum dot according to one or more embodiments includes: a core; a shell around the core; and a first passivation layer and a second passivation layer around the shell, wherein the first passivation layer includes a metal oxide, the second passivation layer includes a compound represented by K′(OA′)n, and K′ is one selected from among In, Zn, Ga, Mg, while n is 2 or 3. A′ is selected from among Ac, H, i-Pr (isopropyl), and Bu (butyl).
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2.发明公开公开(公告)号：US20240324271A1
公开(公告)日：2024-09-26
申请号：US18437361
申请日：2024-02-09
发明人： Yun Ku JUNG , YUNHYUK KO , WON-JUN PARK , CHUL SOON PARK , JONGWOO SHIN , Jungho JO
CPC分类号： H10K50/166 , C09D11/52 , H10K50/11 , H10K71/15
摘要： An ink composition includes a first solvent, a second solvent, a first electron transport material and a second electron transport material. The first electron transport material includes a metal oxide, and a ligand disposed on a surface of the metal oxide. The second electron transport material includes a metal oxide, and a ligand positioned on a surface of the metal oxide. The ligand of the first electron transport material and the ligand of the second electron transport material are different from each other. A difference in a length of the ligand of the first electron transport material and a length of the ligand of the second electron transport material is three or more atoms.
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公开(公告)号：US20210301202A1
公开(公告)日：2021-09-30
申请号：US17203538
申请日：2021-03-16
发明人： Yunhyuk KO , Heesun YANG , Changhee LEE , Kyunghye KIM , Sungwoon KIM , Jungho JO
IPC分类号： C09K11/62 , H01L51/50 , C09K11/70 , C09K11/08 , C09K11/56 , H05B33/14 , C01G9/08 , C01B19/04 , C01G15/00
摘要： Provided are a quantum dot, a method of preparing the quantum dot, an optical member including the quantum dot, and an electronic device including the quantum dot. The quantum dot includes a core including indium (In), A1, and A2; and a shell covering the core. A1 is a Group V element, A2 is a Group III element other than indium, and the core includes a first region, and a second region covering the first region. The first region does not include A2, and includes indium and A1, and the second region includes indium, A1, and A2, and indium and A2 are alloyed with each other in the second region.
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公开(公告)号：US20240276868A1
公开(公告)日：2024-08-15
申请号：US18532579
申请日：2023-12-07
发明人： Jungho JO , CHUL SOON PARK , YUNKU JUNG , WON-JUN PARK , JONGWOO SHIN
IPC分类号： H10K85/30 , H10K50/115 , H10K71/13
CPC分类号： H10K85/381 , H10K50/115 , H10K71/135 , H10K50/15 , H10K50/16
摘要： A light emitting element includes a first electrode, an electron transport region, an emission layer, a hole transport region, and a second electrode, stacked in order. At least one among the electron transport region and the hole transport region includes a metal nanoparticle. The metal nanoparticle includes a core including a metal oxide and a ligand bonded to the core and including at least one among Se and Te. The ligand is derived from a first compound represented by Formula 1 or an ion represented by Formula 2 as described. Accordingly, the light emitting element may be manufactured by an inkjet printing method.
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公开(公告)号：US20240268218A1
公开(公告)日：2024-08-08
申请号：US18516015
申请日：2023-11-21
发明人： SOOHO LEE , Jungho JO , YUNHYUK KO , Yun Ku JUNG
CPC分类号： H10K85/381 , C07F3/06 , H10K50/16
摘要： A metal oxide nanoparticle includes a compound represented by Chemical Formula 1 and an alkyl amine ligand having 8 to 18 carbon atoms positioned on a surface of the compound.
In Chemical Formula 1, M may be one selected from among Ca, Zr, Al, Li, Mg, Ni, Y, W, Co, and Ga.-
公开(公告)号：US20240052239A1
公开(公告)日：2024-02-15
申请号：US18344540
申请日：2023-06-29
发明人： Jungho JO , Yunhyuk KO , Yunku JUNG , Changyeol HAN
IPC分类号： C09K11/62 , H10K50/115 , C09K11/58 , C09K11/02
CPC分类号： C09K11/621 , H10K50/115 , C09K11/586 , C09K11/02 , H10K2102/331
摘要： A quantum dot may include a core including indium (In) and A1, and a first shell covering the core, wherein A1 may be a group III element other than indium, a ratio of a radius of the core to a thickness of the first shell may be in a range of about 1:1 to about 9:1, and the quantum dot may emit blue light having a maximum emission wavelength in a range of about 440 nanometers (nm) to about 480 nm.
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