AMaSiS 2021 - Abstract

Camiola, Vito Dario

A hydrodynamical model for charge transport in graphene nanoribbons

Università degli Studi di Catania, Italy

Since its first isolation as a single layer of carbon atoms graphene has appeared as one of the most promising material for the new era of electronic devices [1]. It presents high electronic mobility at room temperature and high current density, nevertheless the absence of a band gap in its band structure does not make it a good solution for controlling the current flux. For solving the drawback the pristine graphene can be substituted by graphene nanoribbons, narrow strips of graphene that exhibit a band gap depending on the width of the strip [2,3]. Here we propose a hydrodynamical model for the charge transport in graphene nanoribbons that takes into account the gap in band structure and the electron scattering with the lattice structure and with the edge [4].

Acknowledgments: The author thanks for the financial support from the project AIM, Mobilità dei Ricercatori Asse I del PON R & I 2014-2020, proposta AIM1893589.

References
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[3] M. Bresciani, P. Palestri, D. Esseni, L. Selmi. Simple and efficient modeling of the E-k relationship and low-field mobility in Graphene Nano-Ribbons, Solid-State Electronics, 54, 1015-1021, 2010.
[4] V. K. Dugaev, M. I. Katsnelson. Edge scattering of electrons in graphene: Boltzmann equation approach to the transport in graphene nanoribbons and nanodisks, Physical Review B, 88, 235432, 2013.