• 文献标题:   Migration and Localization of Metal Atoms on Strained Graphene
  • 文献类型:   Article
  • 作  者:   CRETU O, KRASHENINNIKOV AV, RODRIGUEZMANZO JA, SUN LT, NIEMINEN RM, BANHART F
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW LETTERS
  • ISSN:   0031-9007 EI 1079-7114
  • 通讯作者地址:   Univ Strasbourg
  • 被引频次:   232
  • DOI:   10.1103/PhysRevLett.105.196102
  • 出版年:   2010

▎ 摘  要

Reconstructed point defects in graphene are created by electron irradiation and annealing. By applying electron microscopy and density functional theory, it is shown that the strain field around these defects reaches far into the unperturbed hexagonal network and that metal atoms have a high affinity to the nonperfect and strained regions of graphene. Metal atoms are attracted by reconstructed defects and bonded with energies of about 2 eV. The increased reactivity of the distorted pi-electron system in strained graphene allows us to attach metal atoms and to tailor the properties of graphene.