• 文献标题:   Investigation of Transport Parameters of Graphene-Based Nanostructures
  • 文献类型:   Article
  • 作  者:   SERGEYEV DM, SHUNKEYEV KS
  • 作者关键词:   graphene, carbon atomic chain, nanoscale junction, currentvoltage characteristic, differential conductivity, transmittance spectrum
  • 出版物名称:   RUSSIAN PHYSICS JOURNAL
  • ISSN:   1064-8887 EI 1573-9228
  • 通讯作者地址:   Mil Inst Air Def Forces
  • 被引频次:   0
  • DOI:   10.1007/s11182-018-1306-9
  • 出版年:   2018

▎ 摘  要

The paper presents results of computer simulation of the main transport parameters of nanostructures obtained through the row-by-row removal of carbon atoms from graphene ribbon. Research into the electrical parameters is carried out within the density functional theory using the non-equilibrium Green functions in the local-density approximation. Virtual NanoLab based on Atomistix ToolKit is used to construct structures and analyze simulation results. Current-voltage characteristics, differential conductivity and transmittance spectra of nanostructures are calculated at different values of bias voltage. It is found that there is a large region of negative differential resistance in current-voltage characteristics of nanostructures caused by resonant tunneling of quasi-particles. Differential (dI/dV) characteristic also has similar changes. The obtained results can be useful for building novel electronic devices in the field of nanoelectronics.