Patent ID: 7816671

Claim:
An organic thin film transistor, comprising a substrate; a gate electrode; a gate insulating layer; source/drain electrodes having functional groups exposed on a surface thereof; an organic semiconductor layer; and a single bond type phosphate-based self-assembled monolayer without intermolecular crosslinking, wherein individual molecules constituting the self-assembled monolayer are not crosslinked with each other, each of the individual molecules of the self-assembled monolayer forming a single bond with each functional group on the surface of the source/drain electrodes, and wherein the self-assembled monolayer has —PO 3 R 1 (R) groups, in which each R is a C 1-30 alkyl group, R being substitutable with one or more selected from among fluorine, an alkoxy group and a C 6-12 aryl group, and R 1 is a C 1-30 alkyl group, R 1 being substitutable with one or more selected from among a cyano group, an alkoxy group, and a C 6-12 aryl group.