US 11,739,262 B2
Light-emitting device and method of manufacturing the same
Jongwon Chung, Hwaseong-si (KR); Hyungjun Kim, Suwon-si (KR); Byunghwa Seo, Seongnam-si (KR); and YongChul Kim, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Dec. 1, 2020, as Appl. No. 17/108,310.
Claims priority of application No. 10-2020-0034049 (KR), filed on Mar. 19, 2020.
Prior Publication US 2021/0292645 A1, Sep. 23, 2021
Int. Cl. H01L 51/50 (2006.01); C09K 11/66 (2006.01); H10K 85/10 (2023.01); H10K 85/60 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01)
CPC C09K 11/665 (2013.01) [H10K 85/151 (2023.02); H10K 85/633 (2023.02); H10K 85/654 (2023.02); H10K 85/655 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A light-emitting device comprising:
a first electrode;
a second electrode facing the first electrode; and
an activation layer located between the first electrode and the second electrode and comprising an emission layer and an auxiliary layer,
wherein the auxiliary layer is located between the first electrode and the emission layer,
the auxiliary layer comprises a block copolymer,
the block copolymer comprises at least one hydrophilic block and at least one hydrophobic block, and
the emission layer comprises a perovskite structure.