公开(公告)号：US20200220043A1

公开(公告)日：2020-07-09

申请号：US16786004

申请日：2020-02-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Garam PARK ,  Tae Hyung KIM ,  Eun Joo JANG ,  Hyo Sook JANG ,  Shin Ae JUN ,  Yongwook KIM ,  Taekhoon KIM ,  Jihyun MIN ,  Yuho WON

IPC: H01L33/04 ,  H01L33/34 ,  H01L33/32 ,  H01L33/30 ,  H01L33/28 ,  H01L33/24 ,  C09K11/88 ,  C09K11/70 ,  C09K11/61 ,  C09K11/02

Abstract: A quantum dot includes a core-shell structure including a core including a first semiconductor nanocrystal and a shell disposed on the core, and including a material at least two different halogens, and the quantum dot does not include cadmium.

公开(公告)号：US20190211260A1

公开(公告)日：2019-07-11

申请号：US16245544

申请日：2019-01-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuho WON ,  Nayoun WON ,  Sungwoo HWANG ,  Eun Joo JANG ,  Soo Kyung KWON ,  Yong Wook KIM ,  Jihyun MIN ,  Garam PARK ,  Shang Hyeun PARK ,  Hyo Sook JANG ,  Shin Ae JUN ,  Yong Seok HAN

IPC: C09K11/08 ,  C08L57/10 ,  G02F1/1335 ,  H01L51/50 ,  H01L27/32

CPC classification number: C09K11/0883 ,  B82Y20/00 ,  B82Y40/00 ,  C08L57/10 ,  C08L2203/20 ,  C09K11/025 ,  C09K11/565 ,  C09K11/70 ,  C09K11/883 ,  G02F1/133617 ,  G02F2001/133614 ,  G02F2202/022 ,  G02F2202/102 ,  G02F2202/36 ,  H01L27/322 ,  H01L51/502 ,  H05B33/14

Abstract: A cadmium free quantum dot not including cadmium and including: 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, a composition and composite including the same, and an electronic device.

公开(公告)号：US20180163129A1

公开(公告)日：2018-06-14

申请号：US15841876

申请日：2017-12-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuho WON ,  Jihyun MIN ,  Eun Joo JANG ,  Hyo Sook JANG

IPC: C09K11/88 ,  H01L33/50

Abstract: An emissive nanocrystal particle includes a core including a first semiconductor nanocrystal including a Group III-V compound and a shell including a second semiconductor nanocrystal surrounding the core, wherein the emissive nanocrystal particle includes a non-emissive Group I element.

公开(公告)号：US20240250220A1

公开(公告)日：2024-07-25

申请号：US18599710

申请日：2024-03-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuho WON ,  Jihyun MIN ,  Eun Joo JANG ,  Hyo Sook JANG

IPC: H01L33/50 ,  B82Y20/00 ,  B82Y40/00 ,  C09K11/02 ,  C09K11/70 ,  C09K11/88 ,  G02F1/1335 ,  G02F1/13357 ,  H01L21/02 ,  H01L31/0232 ,  H01L31/0384 ,  H01L31/055 ,  H01L31/105 ,  H01L33/06 ,  H01L33/08

CPC classification number: H01L33/504 ,  C09K11/02 ,  C09K11/025 ,  C09K11/70 ,  C09K11/883 ,  H01L21/02601 ,  H01L31/0232 ,  H01L31/02322 ,  H01L31/02325 ,  H01L31/0384 ,  H01L31/055 ,  H01L31/1055 ,  H01L33/08 ,  H01L33/50 ,  H01L33/501 ,  H01L33/502 ,  H01L33/505 ,  H01L33/508 ,  B82Y20/00 ,  B82Y40/00 ,  G02B6/005 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0073 ,  G02F1/133614 ,  G02F1/133621 ,  G02F2202/36 ,  H01L33/06 ,  Y10S977/774 ,  Y10S977/818 ,  Y10S977/824 ,  Y10S977/892 ,  Y10S977/896 ,  Y10S977/95

Abstract: An emissive nanocrystal particle includes a core including a first semiconductor nanocrystal including a Group III-V compound and a shell including a second semiconductor nanocrystal surrounding the core, wherein the emissive nanocrystal particle includes a non-emissive Group I element.

公开(公告)号：US20230313031A1

公开(公告)日：2023-10-05

申请号：US18310830

申请日：2023-05-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Soo Kyung KWON ,  Yong Wook KIM ,  Jihyun MIN ,  Eun Joo JANG

IPC: C09K11/02 ,  C09K11/62 ,  G02F1/13357 ,  H10K50/115

CPC classification number: C09K11/025 ,  C09K11/623 ,  G02F1/133615 ,  G02F1/133617 ,  H10K50/115 ,  B82Y20/00 ,  G02F2202/36

Abstract: A quantum dot including a core including a quaternary alloy semiconductor nanocrystal and not including cadmium, a composition and a quantum dot polymer composite including the same, and an electronic device including the same.
The quaternary alloy semiconductor nanocrystal comprises indium (In), phosphorous (P), zinc (Zn), and selenium (Se), and in the core, a ratio of the zinc with respect to the indium is less than or equal to about 0.5:1 and in the core, a ratio of selenium with respect to zinc is less than or equal to about 0.6:1.

公开(公告)号：US20220223765A1

公开(公告)日：2022-07-14

申请号：US17706925

申请日：2022-03-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuho WON ,  Jihyun MIN ,  Eun Joo JANG ,  Hyo Sook JANG

IPC: H01L33/50 ,  C09K11/88 ,  H01L31/0232 ,  H01L31/0384 ,  H01L31/055 ,  H01L21/02 ,  C09K11/02 ,  C09K11/70 ,  H01L31/105 ,  H01L33/08

Abstract: An emissive nanocrystal particle includes a core including a first semiconductor nanocrystal including a Group III-V compound and a shell including a second semiconductor nanocrystal surrounding the core, wherein the emissive nanocrystal particle includes a non-emissive Group I element.

公开(公告)号：US20210348055A1

公开(公告)日：2021-11-11

申请号：US17243741

申请日：2021-04-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Soo Kyung KWON ,  Yong Wook KIM ,  Seon-Yeong KIM ,  Ji-Yeong KIM ,  Jihyun MIN ,  Eun Joo JANG ,  Seonmyeong CHOI ,  Sungwoo HWANG

IPC: C09K11/56 ,  C09K11/88 ,  H01L51/00

Abstract: A quantum dot including a core including a first semiconductor nanocrystal including zinc, selenium, and tellurium, and a semiconductor nanocrystal shell disposed on the core, the semiconductor nanocrystal shell including zinc, and selenium, sulfur, or a combination thereof, wherein the quantum dot does not include cadmium, a mole ratio of tellurium relative to selenium in the first semiconductor nanocrystal is greater than about 1:1, a mole ratio of a sum of selenium and sulfur relative to in the quantum dot is greater than about 1:1, a wavelength of a maximum emission peak of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and the quantum dot has quantum efficiency (QY) of greater than or equal to about 30%, a quantum dot-polymer composite including the quantum dot, a display device including the quantum dot-polymer composite, and an electroluminescent device including the quantum dot.

公开(公告)号：US20210269715A1

公开(公告)日：2021-09-02

申请号：US17186434

申请日：2021-02-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihyun MIN ,  Soo Kyung KWON ,  Seon-Yeong KIM ,  Yong Wook KIM ,  Ji-Yeong KIM ,  Eun Joo JANG ,  Sungwoo HWANG

IPC: C09K11/88 ,  C09K11/02 ,  H01L27/32 ,  H01L51/50

Abstract: A quantum dot including a core and a shell disposed on an outer surface of the core. The core includes a first semiconductor nanocrystal including a Group II-VI compound. The shell includes a second semiconductor nanocrystal. An effective mass of the second semiconductor nanocrystal is about 0.5 times to about 2.0 times an effective mass of the first semiconductor nanocrystal and the quantum dot does not include cadmium, lead, mercury, or a combination thereof.

公开(公告)号：US20210183999A1

公开(公告)日：2021-06-17

申请号：US17186077

申请日：2021-02-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Soo Kyung KWON ,  Yongwook KIM ,  Eun Joo JANG ,  Jihyun MIN

IPC: H01L29/06 ,  C09K11/02 ,  C09K11/70 ,  H01L33/18

Abstract: A quantum dot includes: a core including a first semiconductor nanocrystal, and a shell disposed on the core, the shell including a second semiconductor nanocrystal and a dopant, wherein the first semiconductor nanocrystal includes a Group III-V compound, the second semiconductor nanocrystal includes zinc (Zn), sulfur (S), and selenium, and the dopant includes lithium, a Group 2A metal having an effective ionic radius less than an effective ionic radius of Zn2+, a Group 3A element having an effective ionic radius less than an effective ionic radius of Zn2+, or a combination thereof. Also a method of producing the quantum dot, and a composite, and an electronic device including the quantum dot.

公开(公告)号：US20210040386A1

公开(公告)日：2021-02-11

申请号：US16986384

申请日：2020-08-06

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  The Governing Council of the University of Toronto

Inventor： Jihyun MIN ,  Eun Joo JANG ,  Edward H. SARGENT ,  Hyo Sook JANG ,  Makhsud I. SAIDAMINOV ,  Sjoerd HOOGLAND ,  Ankit JAIN ,  Andrew JOHNSTON ,  Oleksandr VOZNYY

IPC: C09K11/75 ,  C09K11/02

Abstract: A semiconductor nanocrystal particle represented by Chemical Formula 1 and having a full width at half maximum (FWHM) of less than or equal to about 30 nanometers (nm) in the emission wavelength spectrum is provided: AxA′(3+α−x)D(2+β)E(9+γ).   Chemical Formula 1 In Chemical Formula 1, A is a first metal including Rb, Cs, or a combination thereof, A′ is an organic substance derived from an ammonium salt, an organic material derived from an organic ligand, or an organic material including a combination thereof, D is a second metal including Sb, Bi, or a combination thereof E is Cl, Br, I, or a combination thereof, 1 0, −1