• 文献标题:   Charge transport in chemically doped 2D graphene
  • 文献类型:   Article
  • 作  者:   LHERBIER A, BLASE X, NIQUET YM, TRIOZON F, ROCHE S
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW LETTERS
  • ISSN:   0031-9007
  • 通讯作者地址:   CNRS
  • 被引频次:   330
  • DOI:   10.1103/PhysRevLett.101.036808
  • 出版年:   2008

▎ 摘  要

We report on a numerical study of electronic transport in chemically doped 2D graphene materials. By using ab initio calculations, a self-consistent scattering potential is derived for boron and nitrogen substitutions, and a fully quantum-mechanical Kubo-Greenwood approach is used to evaluate the resulting charge mobilities and conductivities of systems with impurity concentration ranging within [0.5, 4.0]%. Even for a doping concentration as large as 4.0%, the conduction is marginally affected by quantum interference effects, preserving therefore remarkable transport properties, even down to the zero temperature limit. As a result of the chemical doping, electron-hole mobilities and conductivities are shown to become asymmetric with respect to the Dirac point.