• 文献标题:   Robust Ballistic Transport in Narrow Armchair-Edge Graphene Nanoribbons with Chemical Edge Disorder
  • 文献类型:   Article
  • 作  者:   GUNLYCKE D, MINTMIRE JW, WHITE CT
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF PHYSICAL CHEMISTRY LETTERS
  • ISSN:   1948-7185
  • 通讯作者地址:   USN
  • 被引频次:   6
  • DOI:   10.1021/jz100046q
  • 出版年:   2010

▎ 摘  要

A semiempirical model based on density functional results is used to study the effects of chemical edge disorder on the transport properties of armchair-edge graphene nanoribbons. Despite a strong scattering potential induced by substituting randomly F for H atoms along their edges, carriers injected close to the band gap in ribbons as narrow as 4.8 nm exhibit ballistic transport over hundreds of nanometers. The results indicate that robust ballistic transport can be maintained in the presence of chemical edge disorder so long as the terminating atoms and/or functional groups remain one-fold-coordinated to the edges and do not contribute states to the pi-network within several eV of the gap.