TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Disclosed): Preparation of the doped organic semiconductive matrix material comprises: carrying out mixed evaporation in the vacuum with a source for hole-conducting matrix material and one for the doping agent; and/or making a solution of matrix material and dopant and form a film from the solution for instance by coating, casting or printing techniques or other film making techniques. Preferred Components: (I) comprise at least one deuterium. SPECIFIC COMPOUNDS - 4 Compounds (I) are disclosed i.e. N,N,N',N'-tetrakis (biphenyl-4-yl)-4,4'-diaminobiphenyl of formula (Ia), N,N'-bis(4'-(diphenylamino)biphenyl-4-yl)-N,N'-diphenyl-4,4'-diaminobiphenyl, 4',4''-bis(bis(4-biphenylyl)amino)-9,9-diphenylfluorene, and 4',4'' -bis(N-(4'-diphenylaminobiphenyl-4-yl)-N-phenyl-amino)-9,9-diphenylfluorene. 5 Compounds (II) are disclosed i.e. 2,2',2''-(cyclopropane-1,2,3-triylidene)-tris(2-perfluorophenyl-acetonitrile) of formula (IIa), 2,2',2''-(cyclopropane-1,2,3-triylidene)-tris(2-(perfluoropyridin-4-yl)-acetonitrile), 2,2',2''-(cyclopropane-1,2,3-triylidene)-tris(2-(4-cyanoperfluorophenyl)-acetonitrile), 2,2',2''-(cyclopropane-1,2,3-triylidene)-tris (2-(2,3,5,6-tetrafluoro-4-trifluoromethylphenyl)-acetonitrile), and 2,2',2''-(cyclopropane-1,2,3- triylidene)-tris(2-(2,6- dichloro-3,5 -difluoro-4-trifluoromethylphenyl)-acetonitrile).    EXAMPLE - Mixture of 10 g bis(biphenyl-4-yl)amine, 5.28 g 4,4'-diiodobiphenyl, 5.39 g anhydrous potassium carbonate, 0.083 g copper powder, 12 ml dodecylbenzene and 24 ml xylene was stirred and heated. After xylene was evaporated the reaction mixture was reacted at 210-215 degrees C for 4 hours. Then, 0.083 g copper powder was added to the reaction mixture, additional reaction was proceeded for 4.5 hours. After cooling to 90 degrees C, toluene was added to the reaction mixture, and the reaction mixture was cooled to room temperature. The reaction mixture was filtered and washed with water, methanol and toluene. The residue was extracted with hot toluene and toluene solution was concentrated to dry-up in vacuum. The crude product obtained was purified by recrystallization, to obtain 7.38 g of N,N,N',N'-tetrakis (biphenyl-4-yl)-4,4'-diaminobiphenyl.