Phthalimide-based polymers for high performance organic thin-film transistors

J Am Chem Soc. 2009 Jun 3;131(21):7206-7. doi: 10.1021/ja810050y.

Abstract

The synthesis and characterization of two new thiophene copolymers with backbone phthalimide units is reported. Thin-film optical and wide-angle X-ray diffraction measurements indicate extended electronic conjugation and close intermolecular pi-stacking for both polymers. Ambient carrier mobility of thin-film transistors prepared from these polymers is as high as 0.28 cm(2)/(V s) with an on/off ratio greater than 10(5).