• 文献标题:   First-principles investigation of the influence of adsorbed atom on the defect and impurity substitute graphene
  • 文献类型:   Article, Proceedings Paper
  • 作  者:   NAKADA K, ISHII A, YAMAMOTO N
  • 作者关键词:   ab initio calculation, graphene, defect, impurity, growth
  • 出版物名称:   JOURNAL OF THE KOREAN PHYSICAL SOCIETY
  • ISSN:   0374-4884 EI 1976-8524
  • 通讯作者地址:   Tottori Univ
  • 被引频次:   1
  • DOI:   10.3938/jkps.63.296
  • 出版年:   2013

▎ 摘  要

We report ab initio calculations of atom substitute in the graphene and atomic adsorption on the graphene with the defect. We calculated local stable structure, the bond energy and magnetic moment when N, Al, Ga and In atom are adsorbed to the point defect graphene. The structure of N atom substitution in the defect site of graphene is the most stable configuration. Magnetic emerges in a point defect, but it disappears by this substitute. Binding energy of the N atomic adsorption on the defect graphene is very highly 14.0 eV. This bond energy is even larger than the bond energy of N-2 molecules. Furthermore, N, Al, Ga and In atom are adsorbed on N substituted. We calculated bond energy and the migration energy in the adsorption of these adatom. When adatom is adsorbed on N atom substituted graphene, bond energy and tendency of the migration energy are tendency same as the graphene without defect. These calculation result suggests that a recoverability of defected graphene is possible using the N atomic adsorption substitutionally at the defect.