Patent ID: 8441002

Claim:
An organic semiconductor composite containing carbon nanotubes and a thiophene compound represented by the following general formula (12): B 4 -A 2 -B 3 (12), wherein B 3 and B 4 are the same or different and each independently represents a group represented by the following general formula (13), and A 2 represents a bivalent linking group represented by any one of the following general formulas (14) to (18); wherein R 21 to R 25 are the same or different and each of R 21 to R 25 is independently selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, a heterocyclic group, an alkenyl group, a cycloalkenyl group, an alkynyl group, an alkoxy group, an alkylthio group, an aryl ether group, an arylthio ether group, an aryl group, a heteroaryl group, a halogen atom, a cyano group, a formyl group, an alkylcarbonyl group, an arylcarbonyl group, a carboxyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylcarbonyloxy group, an arylcarbonyloxy group, a carbamoyl group, an amino group and a silyl group, and in R 21 to R 25 , adjacent substituents may form a ring with each other, m 2 is an integer of 0 to 11, and R 21 s and R 22 s are the same or different when m 2 is 2 or more; and wherein R 15 and R 16 are the same or different and each independently represents an alkylene group, a cycloalkylene group, a bivalent heterocyclic group, a carbonyl group, an oxycarbonyl group or a carbonyloxy group, Ar 13 to Ar 22 are the same or different and each independently represents an arylene group or a heteroarylene group having a six-membered ring, X 7 to X 9 are the same or different and each independently represents —O—, —S— or —SiR 18 R 19 —, Y 7 and Y 8 may be the same or different and each independently represents —CR 20 ═ or —N═, R 18 to R 20 are selected from the same group as R 1 to R 5 , a 7 and a 8 represent 1 or 2, and b 9 to b 12 represent an integer of 1 to 4.