• 文献标题:   Electron transport in graphene/h-BN lateral hybrids: Rhombus and bowtie domains
  • 文献类型:   Article
  • 作  者:   MEHRI A, JAMAATI M, NAMIRANIAN A
  • 作者关键词:   graphene/hbn hybrid, nanoflake, electronic transport, nonequilibrium green s function
  • 出版物名称:   SUPERLATTICES MICROSTRUCTURES
  • ISSN:   0749-6036
  • 通讯作者地址:   Babol Noshirvani Univ Technol
  • 被引频次:   5
  • DOI:   10.1016/j.spmi.2017.05.005
  • 出版年:   2017

▎ 摘  要

Electron transport in graphenefh-BN lateral hybrids with rhombus and bowtie domains is investigated. We apply non-equilibrium Green's function method under tight binding approximation to calculate electrical transmission in mentioned hybrid monolayers. Our findings reveal the importance of size and shape of doped regions in the transport through hybrid systems. Generally, we find that boron and nitrogen doping in zigzag graphene nanoflake, with both rhombus and bowtie patterns, improves its conductance. Growing size of the doped segments, in fixed system size, leads to a stable conductance level. Moreover, carbon doping in h-BN can also make a tunable semiconducting behavior. In the latter case, when the system size is kept constant, enlarging the doped carbon domains exponentially rise up the transmission. (C) 2017 Elsevier Ltd. All rights reserved.