	US 11,917,905 B2
	Light-emitting device including hole transport region containing group 11 metal chalcogenide compound
Hyunmi Doh, Yongin-si (KR); Jaehoon Kim, Yongin-si (KR); and Jaehong Park, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Aug. 19, 2020, as Appl. No. 16/997,770.
Claims priority of application No. 10-2020-0012193 (KR), filed on Jan. 31, 2020.
Prior Publication US 2021/0242403 A1, Aug. 5, 2021
Int. Cl. H01L 51/00 (2006.01); H10K 85/60 (2023.01); C09K 11/70 (2006.01); H10K 50/15 (2023.01); H10K 50/17 (2023.01); H10K 50/115 (2023.01)

CPC H10K 85/633 (2023.02) [C09K 11/70 (2013.01); H10K 85/636 (2023.02); H10K 50/115 (2023.02); H10K 50/15 (2023.02); H10K 50/17 (2023.02); H10K 85/615 (2023.02); H10K 85/6572 (2023.02)]

17 Claims

1. A light-emitting device comprising:

a first electrode;

a second electrode facing the first electrode; and

an interlayer between the first electrode and the second electrode and comprising an emission layer,

wherein the interlayer comprises:

i) a hole transport region between the first electrode and the emission layer, and

ii) an electron transport region the emission layer and the second electrode,

wherein the hole transport region comprises a Group 11 metal chalcogenide compound comprising Cu₂Se, CuSe, or any combination thereof.