• 文献标题:   Tight binding description on the band gap opening of pyrene-dispersed graphene
  • 文献类型:   Article
  • 作  者:   CHEN DM, SHENAI PM, ZHAO Y
  • 作者关键词:  
  • 出版物名称:   PHYSICAL CHEMISTRY CHEMICAL PHYSICS
  • ISSN:   1463-9076
  • 通讯作者地址:   Nanyang Technol Univ
  • 被引频次:   19
  • DOI:   10.1039/c0cp00909a
  • 出版年:   2011

▎ 摘  要

Opening up a band gap in graphene holds a crucial significance in the realization of graphene-based electronics. Doping with organic molecules to alter the electronic properties of graphene is perceived as an effective band gap engineering approach. Using the tight binding model, we examined the band gap opening of monolayer graphene due to the adsorption of pyrene molecules on both of its sides. It was found that the breakdown of the sublattice symmetry in pyrene-dispersed graphene leads to a band gap of similar to 10 meV.