N-([1,1'-biphenyl]-4-yl)-4'-(9H-carbazol-9-yl)-N-(4-(2-(dibenzo[b,d]furan-1-yl)naphthalen-1-yl)phenyl)-[1,1'-biphenyl]-4-amine

N-([1,1'-biphenyl]-4-yl)-4'-(3-(2-cyclopentyl-9-phenyl-9H-fluoren-9-yl)-6-phenyl-9H-carbazol-9-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

N-([1,1'-biphenyl]-4-yl)-4'-(3-(tert-butyl)-9H-carbazol-9-yl)-N-(4-(isoquinolin-6-yl)phenyl)-[1,1'-biphenyl]-4-amine

N-([1,1'-biphenyl]-4-yl)-4'-(9H-carbazol-9-yl)-N-(4-(7-(naphthalen-2-yl)phenanthren-9-yl)phenyl)-[1,1'-biphenyl]-4-amine

N-(4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-N-(4-(2-([1,1'-biphenyl]-3-yl)naphthalen-1-yl)phenyl)-[1,1'-biphenyl]-3-amine

N-(4-(2-([1,1'-biphenyl]-4-yl)naphthalen-1-yl)phenyl)-4'-(9H-carbazol-9-yl)-N-(3-(naphthalen-1-yl)phenyl)-[1,1'-biphenyl]-4-amine

N-(4'-(16,16-dimethylbenzo[5,6][1,4]dithiino[2,3-b]indeno[2,1-g]carbazol-7(16H)-yl)-[1,1'-biphenyl]-4-yl)-N-phenylnaphthalen-1-amine

N-(4'-(15,15-dimethylbenzo[5',6'][1,4]dioxino[2',3':5,6]indeno[1,2-b]carbazol-5(15H)-yl)-[1,1'-biphenyl]-4-yl)-N-phenylnaphthalen-1-amine

N-(4-(benzofuran-2-yl)phenyl)-N-(4'-(3,6-di(benzofuran-2-yl)-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)-9,9-dimethyl-9H-fluoren-2-amine

N-(4-(benzo[d]oxazol-2-yl)phenyl)-N-(4'-(3,6-di(benzofuran-2-yl)-9H-carbazol-9-yl)-[1,1'-biphenyl]-4-yl)anthracen-2-amine

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

N-(4-(benzo[d]thiazol-2-yl)phenyl)-4'-(9H-carbazol-9-yl)-N-(4-(3-fluoro-9H-carbazol-9-yl)phenyl)-[1,1'-biphenyl]-4-amine

N-(4'-(15H-benzo[i]fluoreno[1,9-ab]carbazol-15-yl)-[1,1'-biphenyl]-4-yl)-N-phenyl-[1,1':4',1''-terphenyl]-4-amine

N-(4'-(1-([1,1'-biphenyl]-2-yl)-7H-benzo[c]carbazol-7-yl)-[1,1'-biphenyl]-4-yl)-N-phenylnaphthalen-1-amine

N-(4'-(15,15-dimethylbenzo[5',6'][1,4]dioxino[2',3':4,5]indeno[2,1-a]carbazol-14(15H)-yl)-[1,1'-biphenyl]-4-yl)-N-phenylnaphthalen-1-amine

N-([1,1'-biphenyl]-4-yl)-4'-(14H-benzo[h]benzo[5,6][1,4]dithiino[2,3-a]carbazol-14-yl)-N-phenyl-[1,1'-biphenyl]-4-amine

N-(4'-(13,13-dimethylbenzo[5,6][1,4]dithiino[2,3-a]indeno[1,2-h]carbazol-15(13H)-yl)-[1,1'-biphenyl]-4-yl)-N-phenylnaphthalen-1-amine

N-(4'-(13,13-dimethyl-7,13-dihydroindeno[2,1-b]phenanthro[9,10-g]carbazol-11-yl)-[1,1'-biphenyl]-4-yl)-9,9-dimethyl-N-phenyl-9H-fluoren-2-amine

N-(4'-(12H-benzo[5,6][1,4]dioxino[2,3-a]carbazol-12-yl)-[1,1'-biphenyl]-4-yl)-N-(9,9-dimethyl-9H-fluoren-2-yl)phenanthren-2-amine

N-(4'-(12H-benzo[5,6][1,4]dioxino[2,3-a]carbazol-12-yl)-[1,1'-biphenyl]-4-yl)-N-([1,1'-biphenyl]-4-yl)phenanthren-9-amine