For use in high performance thin film transistors, the semiconducting material must have high carrier mobility, form crystalline films whose conductive axes re aligned between the source and drain electrodes and be processable. Changes at the molecular level significantly affect all of these parameters, giving the chemist an unprecedented degree of flexibility in materials design. This review introduces a number of different materials systems into thin film transistor structures. Focus is on the fabrication of thin film transistor structures and the characterization methods used for both devices and thin films. A wide range of molecular and oligomeric organic compounds in transistor structures are also covered, highlighting the advances that have been made in achieving high mobility materials.
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