Bipolar Hydrodynamical Model for Charge Transport in Graphene Nanoribbons

IF 0.7 4区工程技术 Q3 MATHEMATICS, APPLIED

Journal of Computational and Theoretical Transport Pub Date : 2022-06-20 DOI:10.1080/23324309.2022.2086263

V. D. Camiola, G. Nastasi

引用次数: 0

Abstract

A hydrodynamical model for charge transport in narrow strips of graphene is here presented. The model takes into account the interactions with the well-known lattice vibrations and with the edge of the strip. The remarkable result is the modulation of the charge current due to the swapping of charge carriers between the conduction and the valence bands, controlled by the Fermi energy variation and by the thickness of the ribbon. The numerical test shows a behavior comparable with that one obtained by solving directly the Boltzmann equation but with a considerable reduction of the computational time.

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石墨烯纳米带中电荷输运的双极流体动力学模型

摘要本文提出了石墨烯窄带中电荷输运的流体动力学模型。该模型考虑了与众所周知的晶格振动和与条带边缘的相互作用。显著的结果是由于电荷载流子在导电带和价带之间的交换而引起的电荷电流的调制，这是由费米能量变化和带的厚度控制的。数值试验结果与直接求解玻尔兹曼方程的结果相当，但计算时间大大减少。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Computational and Theoretical Transport Mathematics-Mathematical Physics

CiteScore

1.30

自引率

0.00%

发文量

期刊介绍： Emphasizing computational methods and theoretical studies, this unique journal invites articles on neutral-particle transport, kinetic theory, radiative transfer, charged-particle transport, and macroscopic transport phenomena. In addition, the journal encourages articles on uncertainty quantification related to these fields. Offering a range of information and research methodologies unavailable elsewhere, Journal of Computational and Theoretical Transport brings together closely related mathematical concepts and techniques to encourage a productive, interdisciplinary exchange of ideas.