US 12,338,380 B2
Quantum dots and devices including the same
Yuho Won, Seoul (KR); Sung Woo Kim, Hwaseong-si (KR); Jin A Kim, Suwon-si (KR); Jeong Hee Lee, Seongnam-si (KR); Tae Hyung Kim, 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 Apr. 9, 2024, as Appl. No. 18/630,264.
Application 18/630,264 is a continuation of application No. 18/113,650, filed on Feb. 24, 2023, granted, now 11,981,852.
Application 18/113,650 is a continuation of application No. 17/187,926, filed on Mar. 1, 2021, granted, now 11,591,518, issued on Feb. 28, 2023.
Application 17/187,926 is a continuation of application No. 16/298,108, filed on Mar. 11, 2019, granted, now 10,954,440, issued on Mar. 23, 2021.
Claims priority of application No. 10-2018-0028321 (KR), filed on Mar. 9, 2018.
Prior Publication US 2024/0254388 A1, Aug. 1, 2024
Int. Cl. C09K 11/88 (2006.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); C09K 11/02 (2006.01); H05B 33/14 (2006.01); H10K 50/115 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01)
CPC C09K 11/883 (2013.01) [C09K 11/02 (2013.01); H05B 33/14 (2013.01); H10K 50/115 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 50/171 (2023.02); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A quantum dot comprising a core including a first semiconductor nanocrystal material; and a semiconductor nanocrystal shell disposed on the core and including a second semiconductor nanocrystal material different from the first semiconductor nanocrystal material,
wherein the first semiconductor nanocrystal comprises zinc, tellurium, and selenium, and the second semiconductor nanocrystal comprises ZnSe, ZnS, or a combination thereof,
wherein a quantum efficiency of the quantum dot is between about 80% and about 99%, and wherein a full width at half maximum of the quantum dot is from 18 nm to 30 nm, and wherein in the quantum dot, a mole ratio of tellurium relative to selenium is greater than or equal to about 0.001:1.