	US 11,718,786 B2
	Quantum dots and quantum dot solutions
Tae Hyung Kim, Seoul (KR); Kwanghee Kim, Seoul (KR); Eun Joo Jang, Suwon-si (KR); Dae Young Chung, Suwon-si (KR); and Sujin Park, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Feb. 18, 2022, as Appl. No. 17/675,459.
Application 17/675,459 is a continuation of application No. 16/791,327, filed on Feb. 14, 2020, granted, now 11,254,863.
Claims priority of application No. 10-2019-0018227 (KR), filed on Feb. 15, 2019.
Prior Publication US 2022/0169921 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 11/02 (2006.01); C09K 11/88 (2006.01); C09K 11/56 (2006.01); C09K 11/70 (2006.01); H01L 33/06 (2010.01); B82Y 40/00 (2011.01); B82Y 20/00 (2011.01); H10K 50/115 (2023.01)

CPC C09K 11/025 (2013.01) [C09K 11/562 (2013.01); C09K 11/565 (2013.01); C09K 11/70 (2013.01); C09K 11/703 (2013.01); C09K 11/883 (2013.01); H01L 33/06 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01); H10K 50/115 (2023.02)]

19 Claims

1. A light emitting device comprising

a first electrode and a second electrode facing each other, and

an emission layer disposed between the first electrode and the second electrode,

wherein the emission layer comprises quantum dots, wherein a surface of the quantum dots includes an organic ligand and a halogen, and

wherein an amount of the halogen is greater than or equal to about 1 microgram per milligram of the quantum dots and less than about 30 micrograms per milligram of the quantum dots.