• 文献标题:   Strain-Induced Armchair Graphene Nanoribbon Resonant-Tunneling Diodes
  • 文献类型:   Article
  • 作  者:   ZOGHI M, GOHARRIZI AY
  • 作者关键词:   armchair graphene nanoribbons agnrs, resonanttunneling diodes rtd, strain
  • 出版物名称:   IEEE TRANSACTIONS ON ELECTRON DEVICES
  • ISSN:   0018-9383 EI 1557-9646
  • 通讯作者地址:   Shahid Beheshti Univ
  • 被引频次:   4
  • DOI:   10.1109/TED.2017.2738838
  • 出版年:   2017

▎ 摘  要

The electronic properties of armchair graphene nanoribbons (AGNRs) can be changed and modified under the uniaxial strain. Taking this advantage, we propose a new platform of AGNR-based resonant-tunneling diode (RTD) using the effects of strain for the first time. In this RTD platform, barrier regions are composed of strained AGNR, whereas channel is made up by pristine AGNR. The calculated results show that the double barrier quantumwell is performed for such device, and negative differential resistance property appears in I-V characteristic. In addition, performance of strain-induced 12-AGNR-RTD is explored under the variation of strain percentage (e). It is realized that the efficiency of such devices consist of peak to valley ratio can be engineered by setting strain percentage (e) to appropriate orders. Tight binding model coupled with nonequilibrium Green's function formalism is derived for this paper.