US 11,884,858 B2
Semiconductor nanocrystal, light-emitting film, production method of the light-emitting film, light emitting device, and display device
Kwanghee Kim, Seoul (KR); Tae Hyung Kim, Seoul (KR); Hongkyu Seo, Anyang-si (KR); Won Sik Yoon, Seoul (KR); Jaeyong Lee, Suwon-si (KR); Eun Joo Jang, Suwon-si (KR); and Oul Cho, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on May 5, 2021, as Appl. No. 17/308,344.
Claims priority of application No. 10-2020-0074436 (KR), filed on Jun. 18, 2020; and application No. 10-2021-0039655 (KR), filed on Mar. 26, 2021.
Prior Publication US 2021/0395611 A1, Dec. 23, 2021
Int. Cl. C09K 11/88 (2006.01); C09K 11/70 (2006.01); B82Y 40/00 (2011.01); B82Y 30/00 (2011.01); B82Y 20/00 (2011.01); H10K 50/16 (2023.01); H10K 50/18 (2023.01); H10K 50/115 (2023.01); H10K 50/17 (2023.01)
CPC C09K 11/883 (2013.01) [C09K 11/703 (2013.01); B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); H10K 50/115 (2023.02); H10K 50/16 (2023.02); H10K 50/171 (2023.02); H10K 50/18 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A semiconductor nanocrystal comprising
an anion of an inorganic metal salt bound to a surface of the semiconductor nanocrystal, and
a first organic ligand bound to the surface of the semiconductor nanocrystal,
wherein the inorganic metal salt comprises an inorganic metal halide, an inorganic metal sulfate, an inorganic metal nitrate, an inorganic metal thiocyanate, or a combination thereof, and
the first organic ligand comprises a substituted or unsubstituted C6 to C30 aromatic ring group and a carboxylate group, a substituted or unsubstituted C3 to C30 aromatic heterocyclic group and a carboxylate group, or a combination thereof.