Patent ID: 8115197

Claim:
An organic semiconductor material consisting of a polyacene derivative expressed by the following general formula (I): wherein each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and R 10 may be independently the same substituents or different substituents but all of R 1 , R 4 , R 5 , R 6 and R 10 may never be hydrogen atoms at the same time; and wherein each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and R 10 is at least one kind of substituent selected from the group consisting of an aliphatic hydrocarbon group having a substituent and of which number of carbon atoms ranges from 1 to 20, an aromatic hydrocarbon group having a substituent, a complex aromatic group having a substituent, a carboxyl group, a hydride, an ester group, a cyano group, a hydroxyl group, a thiocarboxyl group, a dithiocarboxyl group, a sulfonic acid group, a sulfinic acid group, a sulfenic acid group, a sulfonyl group, a sulfinyl group, an acyl halide group, a carbamoyl group, a hydrazide group, an imide group, an amide group, an amidino group, an isocyano group, a cyanic acid ester group, an isocyanic acid ester group, a thiocyanic acid ester group, an isothiocyanic acid ester group, a formyl group, a thioformyl group, an acyl group, a thiol group, an amino group, an imino group, a hydrazino group, an alkoxy group, an arlyoxy group, an ether group, a sulfide group, a disulfide group, a silyl group, a germyl group, a stannyl group, a phosphino group, a boryl group, a halogen atom and a hydrogen atom, and wherein for at least one of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and R 10 , the carbon of the substituent directly bonded to the benzene ring having the acene bone does not have a double or triple bond, and wherein a substituent at a part of acene bone is an alkyl group having greater than 3 carbon atoms.