Organic insulator/semiconductor heterostructure monolayer transistors

Field-effect transistors based on self-assembled monolayers of molecular, organic insulator/semiconductor heterostructures are demonstrated. The alkyl chains of the molecule act as the gate insulator and the π-electron moieties as the active semiconductor of the device. Mobilities up 0.05 cm2/V s and on/off ratios exceeding 105 are achieved. In addition, using self-assembled monolayers for patterning transistors with channel lengths as short as 2 nm are demonstrated.