Patent ID: 8134143

Claim:
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 C 6 -C 22 mononuclear/polynuclear aromatic group, a C 2 -C 10 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.