Abstract
The performance of a Schottky barrier carbon nanotube field effect transistor (SB-CNTFET) has been analyzed by means of a compact model. We present a study of the physical and geometrical parameters and their effects on the static and dynamic performance of the SB-CNTFET. For the static regime, we determine the variations in the current–voltage characteristics for three values of the potential barrier and the influence of the barrier on the on-state current. Also, we report the effect of the oxide thickness on the static performance. The relationship between the current–voltage characteristics and the nanotube diameter for different values of drain–source voltage is investigated. For dynamic systems, we study the effect of the gate–source voltage, the chirality and the CNT diameter on the transition frequency. It has been observed that the performance of the SB-CNTFET can be significantly controlled by changing some physical and geometrical parameters of the device.
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