Patent ID: 8101944

Claim:
An organic semiconductor material comprising a following structure of an oligothiophene part and a connecting part G: where, R 1 and R 2 are selected from a group consisting of: a hydrogen, an alkyl group, which is unsubstituted or substituted by one or more substitutents, an alkoxy group, which is unsubstituted or substituted by one or more substitutents, an aryl group, which is unsubstituted or substituted by one or more substitutents, or an alkenyl group, which is unsubstituted or substituted by one or more substitutents, or a combination of two or more thereof; and n is an integer; wherein the connecting part G is selected from a group consisting of: where, R 3 and R 4 are selected from a group consisting of: a hydrogen, an alkyl group, which is unsubstituted or substituted by one or more substitutents, an alkoxy group, which is unsubstituted or substituted by one or more substitutents, an aryl group, which is unsubstituted or substituted by one or more substitutents, or an alkenyl group, which is unsubstituted or substituted by one or more substitutents or a combination of two or more thereof; and m is an integer of 1 to 3; wherein R 1 and R 2 are an alkyl group, which is unsubstituted or substituted by one or more substitutents, comprising four or more carbon numbers.