US 11,834,597 B2
Semiconductor nanocrystal particles, production methods thereof, and devices including the same
Jeong Hee Lee, Seongnam-si (KR); Hyun A Kang, Suwon-si (KR); Sung Woo Kim, Hwaseong-si (KR); Jin A Kim, Suwon-si (KR); Tae Hyung Kim, Seoul (KR); Yuho Won, Seoul (KR); and Eun Joo Jang, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Nov. 22, 2021, as Appl. No. 17/532,439.
Application 17/532,439 is a continuation of application No. 16/851,625, filed on Apr. 17, 2020, granted, now 11,180,694.
Application 16/851,625 is a continuation of application No. 16/170,493, filed on Oct. 25, 2018, granted, now 10,647,917, issued on May 12, 2020.
Claims priority of application No. 10-2017-0139603 (KR), filed on Oct. 25, 2017.
Prior Publication US 2022/0081614 A1, Mar. 17, 2022
Int. Cl. H10K 50/115 (2023.01); C09K 11/88 (2006.01); C09K 11/02 (2006.01); C01B 19/00 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); B82Y 30/00 (2011.01)
CPC C09K 11/883 (2013.01) [C01B 19/007 (2013.01); C09K 11/02 (2013.01); B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01P 2004/64 (2013.01); H10K 50/115 (2023.02)] 19 Claims
OG exemplary drawing
 
1. Quantum dots, each comprising:
a core comprising zinc, tellurium, and selenium; and
a shell disposed on at least a portion of the core and comprising zinc; and selenium and optionally sulfur,
wherein the quantum dots do not comprise cadmium,
wherein the quantum dots comprise a mole ratio of tellurium with respect to selenium of greater than or equal to about 0.001,
wherein in the quantum dots, a mole amount of selenium is greater than a mole amount of tellurium,
wherein a maximum luminescent emission peak of the quantum dots is in a wavelength range from about 440 nanometers to about 560 nanometers,
wherein a quantum efficiency of the quantum dots is greater than or equal to about 60% and less than or equal to 100%, and
wherein a full width at half maximum of the quantum dots is less than or equal to about 45 nm.