Pentacene thin film transistors and inverter circuits

Organic thin film transistors and simple electronic circuits have been fabricated using the fused-ring small-molecule aromatic hydrocarbon pentacene as the active material. Carrier field-effect mobilities greater than 0.2 cm²/V-s were obtained for pentacene thin film transistors fabricated on glass substrates using low-temperature ion-beam deposited silicon dioxide as the gate dielectric and thermally evaporated pentacene as the active material. Using similar transistors, integrated voltage inverters with voltage gain large enough to be useful for the fabrication of electronic circuits have been fabricated.