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1.发明公开公开(公告)号：US20230193131A1
公开(公告)日：2023-06-22
申请号：US18108708
申请日：2023-02-13
Applicant: Samsung Display Co., Ltd.
Inventor： Nayoun WON , Garam PARK , Shin Ae JUN , Tae Gon KIM , Taekhoon KIM , Shang Hyeun PARK , Mi Hye LIM
IPC: C09K11/88 , C09D5/22 , C09D4/06 , C09D135/02 , C09D7/45 , C09D7/65 , C09K11/02 , C09K11/08 , B82Y40/00 , B82Y20/00
CPC classification number: C09K11/883 , C09D5/22 , C09D4/06 , C09D135/02 , C09D7/45 , C09D7/65 , C09K11/02 , C09K11/0883 , B82Y40/00 , B82Y20/00 , H10K59/38 , H10K50/115
Abstract: A quantum dot including a core including a semiconductor nanocrystal including a Group III-V compound; and a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc, selenium, and optionally sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc, sulfur, and optionally selenium, wherein the quantum dot does not include cadmium, an emission peak wavelength of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and an ultraviolet-visible absorption spectrum of the quantum dot includes a first exciton absorption peak and a second exciton absorption peak, a composition including the same, a composite, and an electronic device.
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Patent Agency Ranking
公开(公告)号：US20210009899A1
公开(公告)日：2021-01-14
申请号：US16918316
申请日：2020-07-01
Applicant: Samsung Display Co., Ltd.
Inventor： Nayoun WON , Garam PARK , Shin Ae JUN , Tae Gon KIM , Taekhoon KIM , Shang Hyeun PARK , Mi Hye LIM
Abstract: A quantum dot including a core including a semiconductor nanocrystal including a Group III-V compound; and a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc, selenium, and optionally sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc, sulfur, and optionally selenium, wherein the quantum dot does not include cadmium, an emission peak wavelength of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and an ultraviolet-visible absorption spectrum of the quantum dot includes a first exciton absorption peak and a second exciton absorption peak, a composition including the same, a composite, and an electronic device.
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公开(公告)号：US20200217974A1
公开(公告)日：2020-07-09
申请号：US16825293
申请日：2020-03-20
Inventor： Garam PARK , Tae Gon KIM , Nayoun WON , Shin Ae JUN , Soo Kyung KWON , Seon-Yeong KIM , Shang Hyeun PARK , Jooyeon AHN , Yuho WON , Eun Joo JANG , Hyo Sook JANG
Abstract: Disclosed are a quantum dot population including a plurality of cadmium free quantum dots, a quantum dot polymer composite including the same, and a display device including the same. The plurality of cadmium free quantum dots includes: a semiconductor nanocrystal core comprising indium and phosphorous, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core and comprising zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell and comprising zinc and sulfur, wherein an average particle size of the plurality of cadmium free quantum dots is greater than or equal to about 5.5 nm, a standard deviation of particle sizes of the plurality of cadmium free quantum dots is less than or equal to about 20% of the average particle size, and an average solidity of the plurality of cadmium free quantum dots is greater than or equal to about 0.85.
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4.发明申请公开(公告)号：US20180044586A1
公开(公告)日：2018-02-15
申请号：US15675251
申请日：2017-08-11
Inventor： Ha Il KWON , Tae Gon KIM , Jooyeon AHN , Nayoun WON , Shin Ae JUN , Eun Joo JANG
CPC classification number: C09K11/08 , C01P2004/03 , C01P2004/60 , C01P2004/62 , C09K11/025 , H01L33/06 , H01L33/28 , H01L33/30 , H01L33/34 , H01L33/502 , H01L2924/0001 , H01L2933/0033
Abstract: A quantum dot aggregate particle including a plurality of quantum dots, a polyvalent metal compound, and a thiol compound having at least two thiol groups at its end terminals, wherein a size of the quantum dot aggregate particle is in a range from about 20 nanometers to 10 micrometers.
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公开(公告)号：US20250002784A1
公开(公告)日：2025-01-02
申请号：US18755986
申请日：2024-06-27
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Garam PARK , Tae Gon KIM , Jooyeon AHN , Ji-Yeong KIM , Nayoun WON , Shin Ae JUN
IPC: C09K11/88 , B82Y20/00 , B82Y40/00 , C09K11/02 , C09K11/08 , G02F1/13357 , H10K50/115 , H10K59/12 , H10K59/38
Abstract: Disclosed are a quantum dot and a quantum dot-polymer composite and a device including the same, wherein the quantum dot includes a semiconductor nanocrystal core including indium (In) and phosphorous (P), a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, wherein the quantum dot does not include cadmium, wherein in the quantum dot, a mole ratio of sulfur with respect to selenium is less than or equal to about 2.5:1.
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6.发明申请公开(公告)号：US20180186998A1
公开(公告)日：2018-07-05
申请号：US15862197
申请日：2018-01-04
Inventor： Jooyeon AHN , Nayoun WON , Ha Il KWON , Eun Joo JANG , Shin Ae JUN
Abstract: A composition including: a plurality of quantum dots; a monomer combination including a first monomer having at least two thiol groups at terminal ends of the first monomer and a second monomer having at least two carbon-carbon double bonds at terminal ends of the second monomer; and an additive, a composite prepared therefrom, and an electronic device including same are disclosed. The additive includes a cyclosiloxane compound having a reactive moiety, a (meth)acrylate salt of a polyvalent metal, and a dithiocarbamate salt of a polyvalent metal, or a combination thereof, and wherein the reactive moiety includes a carbon-carbon double bond, a thiol group, or a combination thereof.
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