Comparison of device performance and scaling properties of cylindrical-nanowire (CNW) and carbon-nanotube (CNT) transistors

In this work we investigate the performance of cylindrical nanowire (CNW) and carbon-nanotube (CNT) FETs at their extreme miniaturization limits. The model self-consistently solves the Poisson and the quantum transport equations using the formalism of the quantum transmitting boundary method (QTBM). The performance comparison between CNW- and CNT-FETs with the same diameter demonstrates that the CNW-FET provides a better scaling trend at very low sizes