公开(公告)号：US11355583B2

公开(公告)日：2022-06-07

申请号：US15659758

申请日：2017-07-26

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 ,  B82Y10/00 ,  B82Y40/00

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：US11316079B2

公开(公告)日：2022-04-26

申请号：US16546439

申请日：2019-08-21

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 ,  F21V8/00 ,  G02F1/13357 ,  B82Y20/00 ,  B82Y40/00 ,  H01L33/06 ,  G02F1/1335

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：US11280953B2

公开(公告)日：2022-03-22

申请号：US16796207

申请日：2020-02-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tae Hyung Kim ,  Jihyun Min ,  Yongwook Kim ,  Eun Joo Jang

IPC: C09K11/66 ,  C09K11/88 ,  C09K11/61 ,  C09K11/55 ,  G02F1/1335 ,  F21V8/00 ,  C09K11/70

Abstract: An electronic device includes, a light source having a peak emission at a wavelength between about 440 nm to about 480 nm; and a photoconversion layer disposed on the light source, wherein the photoconversion layer includes a first quantum dot which emits red light and a second quantum dot which emits green light, wherein at least one of the first quantum dot and the second quantum dot has a perovskite crystal structure and includes a compound represented by Chemical Formula 1: AB′X3+α  Chemical Formula 1 wherein A is a Group IA metal, NR4+, or a combination thereof, B′ is a Group IVA metal, X is a halogen, BF4−, or a combination thereof, and α is 0 to 3.

公开(公告)号：US11091690B2

公开(公告)日：2021-08-17

申请号：US16431772

申请日：2019-06-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Soo Kyung Kwon ,  Yong Wook Kim ,  Jihyun Min ,  Eun Joo Jang

IPC: C09K11/02 ,  C09K11/62 ,  H01L51/50 ,  G02F1/13357 ,  B82Y20/00 ,  B82Y40/00 ,  G02F1/1335

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：US10559712B2

公开(公告)日：2020-02-11

申请号：US16111848

申请日：2018-08-24

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

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：US10424695B2

公开(公告)日：2019-09-24

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: H01L33/50 ,  C09K11/88 ,  H01L31/0232 ,  H01L31/0384 ,  H01L31/105 ,  H01L21/02 ,  C09K11/02 ,  C09K11/70 ,  H01L33/08 ,  F21V8/00 ,  G02F1/1335 ,  B82Y20/00 ,  B82Y40/00 ,  H01L33/06

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.