公开(公告)号：US11905447B2

公开(公告)日：2024-02-20

申请号：US17502667

申请日：2021-10-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungwoo Hwang ,  Yong Wook Kim ,  Soo Kyung Kwon ,  Seon-Yeong Kim ,  Ji-Yeong Kim

IPC: C09K11/88 ,  C09K11/56 ,  C09K11/02 ,  H10K50/115 ,  C01G9/00 ,  B82Y40/00 ,  B82Y30/00 ,  B82Y20/00

CPC classification number: C09K11/883 ,  C01G9/006 ,  C09K11/565 ,  C09K11/567 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01P2004/64 ,  C01P2004/84 ,  C01P2006/60

Abstract: A cadmium free quantum dot including a core that includes a first semiconductor nanocrystal including zinc, tellurium, and selenium, and a semiconductor nanocrystal shell that is disposed on the core and includes a zinc chalcogenide, wherein the quantum dot further includes magnesium and the mole ratio of Te:Se is greater than or equal to about 0.1:1 in the quantum dot; a production method thereof; and an electronic device including the same.

公开(公告)号：US11753589B2

公开(公告)日：2023-09-12

申请号：US17383814

申请日：2021-07-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihyun Min ,  Eun Joo Jang ,  Yong Wook Kim

IPC: C09K11/88 ,  C01G9/00 ,  C01G15/00 ,  C09K11/56 ,  C09K11/62 ,  C09K11/70 ,  C09K11/02 ,  B82Y20/00 ,  B82Y30/00 ,  H10K50/115

CPC classification number: C09K11/883 ,  C01G9/006 ,  C01G15/00 ,  C09K11/025 ,  C09K11/565 ,  C09K11/621 ,  C09K11/703 ,  B82Y20/00 ,  B82Y30/00 ,  C01P2004/04 ,  C01P2004/64 ,  C01P2006/60 ,  H10K50/115

Abstract: A quantum dot, a quantum dot-polymer composite, and an electronic device including the same. The quantum dot includes a core including a first semiconductor nanocrystal; a first shell including a second semiconductor nanocrystal including a Group III-VI compound on the core; and a second shell including a third semiconductor nanocrystal having a composition different from that of the second semiconductor nanocrystal on the first shell; wherein one of the first semiconductor nanocrystal and the third semiconductor nanocrystal includes a Group III-V compound.

公开(公告)号：US11746289B2

公开(公告)日：2023-09-05

申请号：US17407260

申请日：2021-08-20

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  POSTECH Research and Business Development Foundation

Inventor： Yong Wook Kim ,  Yong Ju Kwon ,  Sungjee Kim ,  Jihyun Min ,  Yuho Won ,  Eun Joo Jang ,  Hyo Sook Jang ,  Eunjae Lee ,  Kyuhyun Bang ,  Anastasia Agnes ,  Jeongmin Kim

IPC: C09K11/72 ,  C09K11/70 ,  C09K11/08 ,  C01B25/08 ,  B82Y40/00 ,  B82Y20/00

CPC classification number: C09K11/72 ,  C01B25/087 ,  C09K11/0883 ,  C09K11/70 ,  B82Y20/00 ,  B82Y40/00 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/50 ,  C01P2004/64

Abstract: The invention relates to InP-based nanoclusters that include indium and phosphorus and further include zinc, chlorine, or a combination thereof, and to a method of preparing the InP-based nanoparticles including heating the InP-based nanoclusters in the presence of zinc, chlorine, or a combination thereof.

公开(公告)号：US11702593B2

公开(公告)日：2023-07-18

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 ,  H10K50/115 ,  H10K59/38 ,  B82Y40/00 ,  F21V8/00 ,  G02F1/1335 ,  B82Y20/00

CPC classification number: C09K11/883 ,  C09K11/02 ,  H10K50/115 ,  H10K59/38 ,  B82Y20/00 ,  B82Y40/00 ,  G02B6/005 ,  G02F1/133614 ,  G02F2202/36

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：US11639466B2

公开(公告)日：2023-05-02

申请号：US16851520

申请日：2020-04-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yong Wook Kim ,  Eun Joo Jang ,  Hyo Sook Jang ,  Soo Kyung Kwon ,  Seon-Yeong Kim ,  Ji-Yeong Kim

IPC: C09K11/88 ,  C09K11/02 ,  F21V8/00 ,  G02F1/13357 ,  H01L27/32 ,  C09K11/08 ,  C09K11/56 ,  B82Y20/00 ,  B82Y40/00

Abstract: A cadmium free quantum dot includes zinc, tellurium, and selenium, and lithium. A full width at half maximum of a maximum luminescent peak of the cadmium free quantum dot is less than or equal to about 50 nanometers and the cadmium free quantum dot has a quantum efficiency of greater than 1%.

公开(公告)号：US11227479B2

公开(公告)日：2022-01-18

申请号：US16650138

申请日：2018-10-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chan Won Lee ,  Yong Wook Kim

IPC: G08B21/22 ,  G08B13/08 ,  G08B25/00 ,  G08B29/18 ,  H04L12/28

Abstract: Disclosed is an electronic device comprising: a communication circuit, at least one sensor for sensing an open-or-closed state of a door and a person near the door, a processor electrically connected to the communication circuit and the at least one sensor, and a memory electrically connected to the processor.

公开(公告)号：US11142693B2

公开(公告)日：2021-10-12

申请号：US16850119

申请日：2020-04-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihyun Min ,  Eun Joo Jang ,  Yong Wook Kim

IPC: C09K11/00 ,  H01B1/00 ,  H01L27/00 ,  C09K11/88 ,  C09K11/02 ,  C09K11/08 ,  H01L27/32 ,  H01B1/06 ,  B82Y20/00 ,  B82Y40/00 ,  G02F1/1335 ,  G02F1/13357

Abstract: A nanoplatelet including a two-dimensional template including a first semiconductor nanocrystal; and a first shell including a second semiconductor nanocrystal disposed on a surface of the two-dimensional template, the second semiconductor nanocrystal having a composition different from the first semiconductor nanocrystal, wherein the second semiconductor nanocrystal includes a Group III-V compound, and wherein the nanoplatelet does not include cadmium.

公开(公告)号：US11142685B2

公开(公告)日：2021-10-12

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: H01L51/50 ,  C09K11/08 ,  C08L57/10 ,  G02F1/13357 ,  H01L27/32 ,  C09K11/02 ,  C09K11/56 ,  C09K11/70 ,  C09K11/88 ,  H05B33/14 ,  B82Y40/00 ,  B82Y20/00 ,  G02F1/1335

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.