Patent ID: 8963131
Filing Date: 2015-02-24
Classification: H01L

Abstract:
1. A thin film transistor comprising: a gate electrode, a source electrode, and a drain electrode, the source electrode and the drain electrode defining a transistor channel; a gate dielectric layer; a semiconductor layer comprising a small molecule semiconductor and a polymer binder; and an alignment layer in contact with the semiconductor layer; wherein the small molecule semiconductor is aligned along the direction of the transistor channel; wherein the small molecule semiconductor has the structure of Formula (I): wherein each R 1 is independently selected from alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, alkoxy, alkylthio, trialkylsilyl, ketonyl, cyano, and halogen; m and n are the number of R 1 sidechains on their respective phenyl or naphthyl ring, and are independently an integer from 0 to 6; X is selected from the group consisting of O, S, and Se; and a, b, and c are independently 0 or 1.