US 12,258,504 B2
Method for manufacturing a light emitting element including a quantum dot composition
Changhee Lee, Seoul (KR); Dukki Kim, Suwon-si (KR); Hyojin Ko, Seoul (KR); Sehun Kim, Yongin-si (KR); Jaehoon Kim, Seoul (KR); Hyunmi Doh, Seoul (KR); Yunku Jung, Cheonan-si (KR); and Jaekook Ha, Seoul (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Jan. 8, 2024, as Appl. No. 18/407,326.
Application 18/407,326 is a division of application No. 17/192,388, filed on Mar. 4, 2021, granted, now 11,866,627.
Claims priority of application No. 10-2020-0066596 (KR), filed on Jun. 2, 2020.
Prior Publication US 2024/0141228 A1, May 2, 2024
Int. Cl. C09K 11/06 (2006.01); C07C 43/10 (2006.01); C07C 53/00 (2006.01); C07C 63/08 (2006.01); C07C 211/09 (2006.01); C07C 309/04 (2006.01); C07C 309/30 (2006.01); C07F 9/54 (2006.01); H10K 50/115 (2023.01); H10K 71/00 (2023.01); H10K 71/15 (2023.01); H10K 85/60 (2023.01)
CPC C09K 11/06 (2013.01) [C07C 43/10 (2013.01); C07C 53/00 (2013.01); C07C 63/08 (2013.01); C07C 211/09 (2013.01); C07C 309/04 (2013.01); C07C 309/30 (2013.01); C07F 9/5407 (2013.01); C07F 9/5442 (2013.01); H10K 85/60 (2023.02); C09K 2211/10 (2013.01); C09K 2211/1007 (2013.01); H10K 50/115 (2023.02); H10K 71/00 (2023.02); H10K 71/15 (2023.02)] 5 Claims
OG exemplary drawing
 
1. A method of manufacturing a light emitting element, the method comprising:
forming a first electrode;
forming a hole transport region on the first electrode;
providing, on the hole transport region, a quantum dot composition containing a quantum dot composite having a quantum dot and a ligand bonded to a surface of the quantum dot to form a preliminary emission layer;
providing a polar solvent on the preliminary emission layer to form an emission layer, wherein in the providing of the polar solvent on the preliminary emission layer, the ligand is dissociated from the quantum dot in the polar solvent;
forming an electron transport region on the emission layer; and
forming a second electrode on the electron transport region.