2,7-carbazolenevinylene derivatives as novel materials in producing organic based electronic devices

An organic based device which is an organic Field Effect Transistor (OFET) or an Organic Photovoltaic Cell (OPC), the device comprising as a first active material a conjugated oligomeric 2,7-carbazolenevinylene derivative described by the formula I:

• wherein X is a comonomer selected from the group consisting of ethylene, acetylene, a C6-C22 mononuclear/polynuclear aromatic group, a C2-C10 mononuclear/polynuclear heterocyclic group, and a tertiary arylamine, wherein A is selected from hydrogen, a linear or branched alkyl group containing 1 to 20 carbon atoms, a linear or branched alkoxy group containing 1 to 20 carbon atoms, a cyano group, a halogen group, a monovalent aromatic group, and a monovalent aromatic complex ring group having one nitrogen atom as a hetero-atom, wherein B is selected from hydrogen, a linear or branched alkyl group containing 1 to 20 carbon atoms, a linear or branched alkoxy group containing 1 to 20 carbon atoms, a cyano group, a halogen group, a monovalent aromatic group, and a monovalent aromatic complex ring group having one nitrogen atom as a hetero-atom, wherein R is selected from hydrogen, a linear or branched alkyl group containing 1 to 20 carbon atoms, a linear or branched alkoxy group containing 1 to 20 carbon atoms, a poly (ethyleneoxy) group, a cyano group, an aryl group, an amide group, and a benzoyl group, and where n is an integer equal to 1 or 2.