US 11,950,507 B2
Organic electroluminescence device
Huiqing Pang, Beijing (CN); Ru Jia, Beijing (CN); Zhihao Cui, Beijing (CN); Xiao Chen, Beijing (CN); Chuanjun Xia, Beijing (CN); Chi Yuen Raymond Kwong, Beijing (CN); and Jing Wang, Beijing (CN)
Assigned to BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD., Beijing (CN)
Filed by BEIJING SUMMER SPROUT TECHNOLOGY CO., LTD., Beijing (CN)
Filed on Dec. 1, 2020, as Appl. No. 17/108,448.
Claims priority of application No. 201911209540.X (CN), filed on Dec. 3, 2019.
Prior Publication US 2021/0167298 A1, Jun. 3, 2021
Int. Cl. H01L 51/50 (2006.01); H10K 85/60 (2023.01); H10K 50/155 (2023.01)
CPC H10K 85/6572 (2023.02) [H10K 85/631 (2023.02); H10K 50/155 (2023.02)] 21 Claims
OG exemplary drawing
 
1. An organic electroluminescence device, comprising:
an anode,
a cathode,
a light-emitting layer disposed between the anode and the cathode, and
a first organic layer disposed between the anode and the light-emitting layer,
wherein the first organic layer comprises a compound of Formula 1 and a compound of Formula 2;

OG Complex Work Unit Chemistry
wherein, in Formula 1,
X and Y are, at each occurrence identically or differently, selected from NR′, CR″R′″, O, S or Se;
Z1 and Z2 are, at each occurrence identically or differently, selected from O, S or Se;
R, R′, R″ and R″' are, at each occurrence identically or differently, selected from a group consisting of: hydrogen, deuterium, halogen, a nitroso group, a nitro group, an acyl group, a carbonyl group, a carboxylic acid group, an ester group, a cyano group, an isocyano group, SCN, OCN, SF5, a boryl group, a sulfinyl group, a sulfonyl group, a phosphoroso group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted heteroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted arylalkyl group having 7 to 30 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 20 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 20 carbon atoms, and combinations thereof;
each R is identical or different, and at least one of R, R′, R″ and R′″ is a group having at least one electron-withdrawing group; and
in Formula 1, adjacent substituents are optionally joined to form a ring;
wherein, in Formula 2,

OG Complex Work Unit Chemistry
X1 to X8 are, at each occurrence identically or differently, selected from CR1 or N;
L is, at each occurrence identically or differently, selected from a substituted or unsubstituted arylene group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroarylene group having 3 to 30 carbon atoms, or combinations thereof;
Ar1 and Ar2 are, at each occurrence identically or differently, selected from a substituted or unsubstituted aryl group having 6 to 30 carbon atoms or a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms;
R1 is, at each occurrence identically or differently, selected from a group consisting of:
hydrogen, deuterium, halogen, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 20 ring carbon atoms, a substituted or unsubstituted heteroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted arylalkyl group having 7 to 30 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 20 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 20 carbon atoms, a substituted or unsubstituted amino group having 0 to 20 carbon atoms, an acyl group, a carbonyl group, a carboxylic acid group, an ester group, a nitrile group, an isonitrile group, a sulfanyl group, a sulfinyl group, a sulfonyl group, a phosphino group, and combinations thereof; and
in Formula 2, adjacent substituents are optionally joined to form a ring.