Patent ID: 11957049
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC H  C  Y | IPC C  H

Claim 4:
5. The emission layer according to claim 4, wherein the two second chemical moieties, each at each occurrence independently comprise a structure of formula IIb:, wherein
Rb is at each occurrence independently selected from the group consisting of N(R5)2, OR5, Si(R5)3, B(OR5)2, OSO2R5, CF3, CN,
C1-C40-thioalkoxy,
which is optionally substituted with one or more substituents R5 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R5C═CR5, C═C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5;

C2-C40-alkenyl,
which is optionally substituted with one or more substituents R5 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R5C═CR5, C═C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5;

C2-C40-alkynyl,
which is optionally substituted with one or more substituents R5 and
wherein one or more non-adjacent CH2-groups are optionally substituted by R5C═CR5, C═C, Si(R5)2, Ge(R5)2, Sn(R5)2, C═O, C═S, C═Se, C═NR5, P(═O)(R5), SO, SO2, NR5, O, S or CONR5;

C6-C60-aryl,
which is substituted with one or more substituents R5 excluding hydrogen; and

C3-C57-heteroaryl,
which is optionally substituted with one or more substituents R5 excluding hydrogen.