• 文献标题:   Energy gap tuning in graphene on hexagonal boron nitride bilayer system
  • 文献类型:   Article
  • 作  者:   SLAWINSKA J, ZASADA I, KLUSEK Z
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   2469-9950 EI 2469-9969
  • 通讯作者地址:   Univ Lodz
  • 被引频次:   137
  • DOI:   10.1103/PhysRevB.81.155433
  • 出版年:   2010

▎ 摘  要

We use a tight-binding approach and density functional theory calculations to study the band structure of graphene/hexagonal boron nitride bilayer system in the most stable configuration. We show that an electric field applied in the direction perpendicular to the layers significantly modifies the electronic structure of the whole system, including shifts, anticrossing and other deformations of bands, which can allow to control a value of the energy gap. It is shown that band structure of biased system may be tailored for specific requirements of nanoelectronics applications. The carriers' mobilities are expected to be higher than in the bilayer graphene devices.