US 12,065,603 B2
Quantum dot, lighting emitting element and display device including the same
Sunyoung Kwon, Seoul (KR); Wan Ki Bae, Suwon-si (KR); Donghyo Hahm, Suwon-si (KR); Keunchan Oh, Hwaseong-si (KR); Hyeokjin Lee, Seongnam-si (KR); and Seong-Pil Huh, Suwon-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR); and Research & Business Foundation Sungkyunkwan University, Suwon-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR); and Research & Business Foundation SUNGKYUNKWAN UNIVERSITY, Suwon-si (KR)
Filed on Jul. 1, 2021, as Appl. No. 17/365,887.
Claims priority of application No. 10-2020-0108921 (KR), filed on Aug. 28, 2020.
Prior Publication US 2022/0064527 A1, Mar. 3, 2022
Int. Cl. C09K 11/88 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); C09K 11/08 (2006.01); C09K 11/74 (2006.01); H10K 50/115 (2023.01); H10K 59/38 (2023.01)
CPC C09K 11/883 (2013.01) [C09K 11/0883 (2013.01); C09K 11/7492 (2013.01); H10K 50/115 (2023.02); H10K 59/38 (2023.02); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01)] 18 Claims
 
1. A quantum dot comprising:
a core;
a shell layer around the core, and
a first core layer between the core and the shell layer, the first core layer being around the core,
wherein a difference in lattice constants between the core and the shell layer is 3% or less,
the first core layer comprises a Group 13 element and a Group 15 element, and
the core comprises all elements comprised in the first core layer and further comprises at least one Group 13 element.