Performance evaluation of Carbon nanotube junctionless tunneling field effect transistor (CNT-JLTFET) under torsional strain: A quantum simulation study

International Journal of Nano Dimension

مقاله 6، دوره 11، شماره 3، مهر 2020، صفحه 258-266   

نوع مقاله: Reasearch Paper

نویسندگان

Soheila Moghadam؛ Seyed Saleh Ghoreishi^* ؛ Reza Yousefi؛ Habib Adarang

Department of Electrical Engineering, Nour Branch, Islamic Azad University, Nour, Iran.

چکیده

In this paper, the performance of a CNT-JLTFET under different values of torsional strains of 0, 3, and 5 degrees has been investigated. Simulation has been carried out using non-equilibrium Green’s function (NEGF) formalism in the mode-space approach and in the ballistic limit. The simulation results indicate that, under torsional strain, an increase occurs in the energy band-gap, and thus the on- and off-currents are reduced, thought that reduction has a greater percentage in the off-current, resulting in the increase in the ON/OFF current ratio. Besides, the switching characteristics of the device including power-delay product (PDP) and intrinsic delay (τ) have been studied.

کلیدواژه‌ها

Band-Structure-Limited Velocity؛ Intrinsic Delay (τ)؛ Mode-Space؛ Power-Delay-Product (PDP)؛ Torsional Strain

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