	US 11,981,851 B2
	Quantum dots and device including the same
Sung Woo Kim, Hwaseong-si (KR); Jin A Kim, Suwon-si (KR); Tae Hyung Kim, Seoul (KR); Kun Su Park, Seongnam-si (KR); Yuho Won, Seoul (KR); Jeong Hee Lee, Seongnam-si (KR); Eun Joo Jang, Suwon-si (KR); Hyo Sook Jang, Suwon-si (KR); Yong Seok Han, Anyang-si (KR); and Heejae Chung, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Nov. 11, 2022, as Appl. No. 18/054,687.
Application 18/054,687 is a continuation of application No. 17/007,179, filed on Aug. 31, 2020, granted, now 11,499,098.
Claims priority of application No. 10-2019-0106890 (KR), filed on Aug. 29, 2019.
Prior Publication US 2023/0071604 A1, Mar. 9, 2023
Int. Cl. C09K 11/88 (2006.01); B82Y 20/00 (2011.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); H10K 50/115 (2023.01)

CPC C09K 11/883 (2013.01) [H10K 50/115 (2023.02); B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01P 2002/01 (2013.01); C01P 2002/74 (2013.01); C01P 2004/30 (2013.01); C01P 2004/64 (2013.01); C01P 2004/80 (2013.01)]

19 Claims

1. Quantum dots comprising zinc, tellurium, selenium, and sulfur,

wherein in the quantum dots, a mole ratio of tellurium to selenium is greater than or equal to about 0.0001:1 and less than or equal to about 0.1:1, a mole ratio of selenium to zinc is greater than or equal to about 0.1:1 and less than about 1:1, and a mole ratio of sulfur to selenium is less than about 1.4:1,

wherein the quantum dots do not comprise cadmium, and are configured to emit blue light,

wherein the quantum dots are configured to exhibit an absolute quantum yield of greater than or equal to 71%,