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Electron Transport in Model Quasi-Two-Dimensional van der Waals Nanodevices

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Abstract

Electron transport in a model nanodevice consisting of a combination of graphene, silicene, and molybdenum disulfide coupled by van der Waals bonds is studied within the framework of the density functional theory in the local-density approximation and method of nonequilibrium Green functions. The volt–ampere and dI/dV characteristics and transmission spectra of the nanodevices are calculated. It is revealed that the combination of silicene and molybdenum disulfide forms a new nanosystem with metallic properties manifesting themselves in its electron transport characteristics. It is shown that the graphene–MoS2–silicene hybrid nanostructure has rectifying properties due to the formation of the Schottky barrier, while steps of Coulomb origin appear in its volt–ampere characteristic at a positive voltage.

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Funding

This work was carried out within the framework of a project of the Science Committee of the Ministry of Education and Science of the Republic of Kazakhstan, grant no. AP08052562.

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Authors and Affiliations

  1. Zhubanov Aktobe Regional University, 030000, Aktobe, Kazakhstan

    D. M. Sergeyev & A. G. Duisenova

  2. Begeldinov Military Institute of Air Defense Forces, 030012, Aktobe, Kazakhstan

    D. M. Sergeyev

Authors
  1. D. M. Sergeyev
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  2. A. G. Duisenova
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Correspondence to D. M. Sergeyev.

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The authors declare that they have no conflicts of interest.

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Translated by A. Nikol’skii

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Sergeyev, D.M., Duisenova, A.G. Electron Transport in Model Quasi-Two-Dimensional van der Waals Nanodevices. Tech. Phys. Lett. 47, 417–420 (2021). https://doi.org/10.1134/S1063785021040295

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