Twin derivatives of 3-arylcarbazoles as efficient hole transporting amorphous materials

Twin derivatives of fluorophenyl, difluorophenyl or trifluorophenyl substituted carbazoles as electroactive amorphous materials

“…The characteristics observed for this device are notably superior to those of reference device containing widely used PEDOT:PSS as HTL. The charge injection/transporting properties of material 4 could also be compared with those of similar derivate 1,6-bis(3-phenylcarbazol-9-yl) hexane, which was described by us earlier [11]. It could be observed that one fluorine atom at phenyl ring has not an evident influence on charge injection/transporting characteristics of the similar derivatives.…”

“…We have earlier synthesized series of twin derivatives containing aryl or arylamino substituted carbazole rings and tested them as materials for hole transporting layers (HTL) [10,11]. It was observed that the compounds demonstrate good amorphous film forming properties and better charge transporting properties than that of derivatives containing unsubstituted carbazole rings.…”