9-(4'-(7H-benzo[c]carbazol-7-yl)-[1,1'-biphenyl]-4-yl)-11,11-dimethyl-9,11-dihydrodibenzo[a,c]indeno[1,2-h]carbazole

9,9-dimethyl-N-phenyl-N-(4'-(1-phenyl-7H-benzo[c]carbazol-7-yl)-[1,1'-biphenyl]-4-yl)-9H-fluoren-2-amine

2-(9-(4'-(3,6-bis(trifluoromethyl)-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-9H-carbazol-3-yl)thieno[2,3-c]pyridine

2-(9-(4'-(3,6-bis(trifluoromethyl)-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-9H-carbazol-3-yl)furo[2,3-c]pyridine

N-(4'-(10H-phenoxazin-10-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(10H-phenoxazin-10-yl)phenyl)-9,9-diethyl-9H-fluoren-2-amine

9,9-dimethyl-N-phenyl-N-(4'-(2-phenyl-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-9H-fluoren-2-amine

9-(4'-(7H-benzo[c]carbazol-7-yl)-[1,1'-biphenyl]-4-yl)-9H-carbazole-2,7-dicarbonitrile

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-9,9-dibutyl-N-phenyl-9H-fluoren-2-amine

4,4'-bis(5-methyl-2-(o-tolyl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-octyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-(benzo[d]oxazol-2-yl)-6-phenyl-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(12-(naphthalen-1-yl)-9H-dibenzo[a,c]carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-bromo-6-octyl-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-allyl-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-bis(3-phenyl-9H-carbazol-9-yl)-1,1'-biphenyl

4,4'-di(9H-[1,9'-bicarbazol]-9-yl)-1,1'-biphenyl

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-phenylquinoxalin-6-amine

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-phenyl-3'-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)-[1,1'-biphenyl]-3-amine

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(naphthalen-1-yl)-1-azaspiro[adamantane-4,9'-fluoren]-3'-amine