• 文献标题:   Number of Conducting Channels for Armchair and Zig-Zag Graphene Nanoribbon Interconnects
  • 文献类型:   Article
  • 作  者:   MAFFUCCI A, MIANO G
  • 作者关键词:   conducting channel, graphene nanoribbons gnrs, nanointerconnect, transmission lines tls
  • 出版物名称:   IEEE TRANSACTIONS ON NANOTECHNOLOGY
  • ISSN:   1536-125X EI 1941-0085
  • 通讯作者地址:   Univ Cassino Southern Lazio
  • 被引频次:   12
  • DOI:   10.1109/TNANO.2013.2274901
  • 出版年:   2013

▎ 摘  要

Nanowire-based circuits are candidates for future high-speed electronics. Signal propagation in nanowires can be studied by combining the semiclassical Boltzmann transport theory to the classical transmission line theory. In this paper, we apply this approach to model the signal propagation in graphene nanoribbon (GNR) interconnects. We express the kinetic inductance and the quantum capacitance in terms of the number of effective conducting channels. We study in detail the behavior of the number of effective conducting channels for both the armchair and zig-zag GNRs as their widths vary. This number is computed rigorously, taking into account the actual distribution of the energy spectrum and of the velocity of the conduction electrons. We found that the expressions for the number of conducting channels proposed in the literature give a significant overestimation of its values.