Theory of transfer characteristics of nanotube network transistors

Carbon nanotubes (CNT) nanocomposites used for thin-film transistors (TFTs) provide one of the first technologically-relevant test beds for two-dimensional heterogeneous percolating systems. The characteristics of these TFTs are predicted by considering the physics of heterogeneous finite-sized networks and interfacial traps at the CNT/gate-oxide interface. Close agreement between our numerical results and different experimental observations demonstrates the capability of the model to predict the characteristics of CNT/nanowire-based TFTs. Such predictive models would simplify device optimization and expedite the development of this nascent TFT technology.