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公开(公告)号：US20200283680A1
公开(公告)日：2020-09-10
申请号：US16883989
申请日：2020-05-26
Inventor： Shin Ae JUN , Taekhoon KIM , Garam PARK , Yong Seok HAN , Eun Joo JANG , Hyo Sook JANG , Tae Won JEONG , Shang Hyeun PARK
IPC: C09K11/02 , C09K11/88 , C09K11/70 , C08K3/32 , C08K3/30 , G02F1/1335 , G02F1/13357
Abstract: A quantum dot, including a core including a first semiconductor material that includes indium; and a shell including a second semiconductor material, and disposed on the core, wherein the first semiconductor material and the second semiconductor material are different, wherein the shell has at least two branch portions and a valley portion connecting the at least two branch portions, at least one of the at least two branch portions comprises Zn, Se, and S, and a content of sulfur in the at least one branch portion increases in a direction away from the core.
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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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3.发明申请公开(公告)号：US20210284905A1
公开(公告)日：2021-09-16
申请号：US17308333
申请日：2021-05-05
Inventor： Ha Il KWON , Tae Gon KIM , Shang Hyeun PARK , Eun Joo JANG , Shin Ae JUN , Garam PARK
Abstract: A composition including a plurality of quantum dots; a binder polymer; a thiol compound having at least two thiol groups; a polyvalent metal compound; a polymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent.
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公开(公告)号：US20210095205A1
公开(公告)日：2021-04-01
申请号：US17036068
申请日：2020-09-29
Applicant: Samsung Display Co., Ltd.
Inventor： Jooyeon AHN , Jongmin LEE , Taekhoon KIM , Shin Ae JUN , Tae Gon KIM , Garam PARK
Abstract: A quantum dot including a nanoparticle template including a first semiconductor nanocrystal including a Group II-VI compound, a quantum well including a second semiconductor nanocrystal disposed on the nanoparticle template, the second semiconductor nanocrystal including a Group IIIA metal excluding aluminum and a Group V element; and a shell comprising a third semiconductor nanocrystal disposed on the quantum well, the third semiconductor nanocrystal including a Group II-VI compound, wherein the quantum dot does not include cadmium, a band gap energy of the second semiconductor nanocrystal is less than a band gap energy of the first semiconductor nanocrystal, the band gap energy of the second semiconductor nanocrystal is less than a band gap energy of the third semiconductor nanocrystal, and the quantum dot includes an additional metal including an alkali metal, an alkaline earth metal, aluminum, iron, cobalt, nickel, copper, zinc, or a combination thereof.
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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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Patent Agency Ranking
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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公开(公告)号：US20210147749A1
公开(公告)日：2021-05-20
申请号：US16950994
申请日：2020-11-18
Applicant: Samsung Display Co., Ltd.
Inventor： Taekhoon KIM , Shin Ae JUN , Yong Wook KIM , Tae Gon KIM , Garam PARK
Abstract: A quantum dot including a core including a first semiconductor nanocrystal including a Group III-V compound; and a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell including zinc, tellurium, and selenium, wherein the quantum dot does not include cadmium, and the semiconductor nanocrystal shell has a mole ratio of tellurium to selenium of less than about 0.025:1, a composition including the quantum dot, a quantum dot-polymer composite, a patterned layer including the composite, and an electronic device including the patterned layer.
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8.发明申请公开(公告)号：US20180044583A1
公开(公告)日：2018-02-15
申请号：US15672608
申请日：2017-08-09
Inventor： Ha Il KWON , Tae Gon KIM , Shang Hyeun PARK , Eun Joo JANG , Shin Ae JUN , Garam PARK
CPC classification number: C09K11/02 , C08K3/16 , C08K3/30 , C08K9/04 , C08K2003/168 , C08K2003/3036 , C09K11/562 , G02F1/1336 , G02F2001/133614 , G02F2201/50
Abstract: A composition including a plurality of quantum dots; a binder polymer; a thiol compound having at least two thiol groups; a polyvalent metal compound; a polymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent.
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9.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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公开(公告)号：US20230119564A1
公开(公告)日：2023-04-20
申请号：US18083722
申请日：2022-12-19
Applicant: Samsung Display Co., Ltd.
Inventor： Taekhoon KIM , Shin Ae JUN , Yong Wook KIM , Tae Gon KIM , Garam PARK
Abstract: A quantum dot including a core including a first semiconductor nanocrystal including a Group III-V compound; and a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell including zinc, tellurium, and selenium, wherein the quantum dot does not include cadmium, and the semiconductor nanocrystal shell has a mole ratio of tellurium to selenium of less than about 0.025:1, a composition including the quantum dot, a quantum dot-polymer composite, a patterned layer including the composite, and an electronic device including the patterned layer.
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