• 文献标题:   Improving I-on/I-off in dual-gate graphene nanoribbon field-effect transistors using local uniaxial tensile strain
  • 文献类型:   Article
  • 作  者:   MOSLEMI MR, MORAVEJFARSHI MK, SHEIKHI MH
  • 作者关键词:   graphene nanoribbon field effect transistor gnrfet, ambipolarity, band to band tunneling, drain induced barrier lowering dibl, non equilibrium green s function negf, short channel effect, uniaxial tensile strain
  • 出版物名称:   PHYSICA ELOWDIMENSIONAL SYSTEMS NANOSTRUCTURES
  • ISSN:   1386-9477 EI 1873-1759
  • 通讯作者地址:   Islamic Azad Univ
  • 被引频次:   4
  • DOI:   10.1016/j.physe.2014.12.032
  • 出版年:   2015

▎ 摘  要

In this work, we present the Dual-Gate Graphene Nano Ribbon Field Effect Transistor (DG-GNRFET) under local uniaxial strain in source and drain regions as a device suitable for switching applications. Our investigations are based on the 2D Poisson based on an atomistic mode-space approach and Schrodinger equations, within the Non-Equilibrium Green's (NEGF). We show a high on-current and on-off ratio which can be obtained using the combination of techniques such as applying uniaxial strain to the portion of channel/source regions and the gate overlap. We followed an optimization process to find the best performance of the device. Finally, the proposed device shows a higher on-current and on-off ratio becomes about 100 times greater than of the unstrained device. (C) 2015 Elsevier B.V. All rights reserved.