公开(公告)号：US20230183568A1

公开(公告)日：2023-06-15

申请号：US18062727

申请日：2022-12-07

Applicant: Samsung Display Co., Ltd.

Inventor： Juo Nam ,  Jaebok Chang ,  Junehyuk Jung ,  Sungjae Kim ,  Donghee Lee ,  Taekjoon Lee

IPC: C09K11/62 ,  B82Y20/00 ,  C09K11/64 ,  H01L33/50

CPC classification number: C09K11/62 ,  B82Y20/00 ,  C09K11/64 ,  H01L33/504 ,  H01L2933/0041

Abstract: Provided are: a method of preparing a quantum dot, the method including preparing a first particle including a Group III-V compound including gallium (Ga) and treating the first particle with an aluminum (Al) composition including an aluminum (Al) precursor; a quantum dot manufactured by the method; an optical member including the quantum dot; and an electronic apparatus including the quantum dot.

公开(公告)号：US20240279540A1

公开(公告)日：2024-08-22

申请号：US18490665

申请日：2023-10-19

Applicant: Samsung Display Co., Ltd.

Inventor： Juo Nam ,  Joonhyung Kim ,  Kawon Pak ,  Kyungsig Lee ,  Taekjoon Lee ,  Seunghee Jang ,  Jaebok Chang

IPC: C09K11/08 ,  C09D11/03 ,  C09K11/06 ,  H10K50/115

CPC classification number: C09K11/08 ,  C09D11/03 ,  C09K11/06 ,  H10K50/115

Abstract: A quantum dot composite including a quantum dot and a quantum dot ligand located on a surface of the quantum dot is provided. The quantum dot ligand includes a hydrophilic linking portion including an oxygen atom, a bonding portion linked to one side of the linking portion and including different functional groups bonded to the quantum dot, and a terminal portion linked to the linking portion at a side opposite to the linking portion. The quantum dot ligand is configured to prevent or reduce aggregation of quantum dots and improve their dispersion in a solvent thereby improving the light and/or heat resistance of electronic apparatus that utilize the quantum dot composite.

公开(公告)号：US20230193122A1

公开(公告)日：2023-06-22

申请号：US17960284

申请日：2022-10-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Junehyuk Jung ,  Jaebok Chang ,  Sungjae Kim ,  Juo Nam ,  Donghee Lee ,  Taekjoon Lee

IPC: C09K11/02 ,  C09K11/88 ,  C09K11/08

CPC classification number: C09K11/025 ,  C09K11/883 ,  C09K11/0883 ,  B82Y20/00

Abstract: Provided are a method of preparing a quantum dot, a quantum dot prepared thereby, and an electronic apparatus including the quantum dot. The method includes: preparing a core including a Group III element, a Group V element, and gallium (Ga); and preparing a shell covering the core by using a composition for forming the shell. The composition for forming the shell includes a first additive, and the first additive is a metal halide.