• 文献标题:   Hydrogen adsorption on one-dimensional graphene superlattices
  • 文献类型:   Article
  • 作  者:   HUANG XQ, LIN CF, YIN XL, ZHAO RG, WANG EG, HU ZH
  • 作者关键词:   stm, graphene, 1d superlattice, h adsorption
  • 出版物名称:   ACTA PHYSICA SINICA
  • ISSN:   1000-3290
  • 通讯作者地址:   Peking Univ
  • 被引频次:   5
  • DOI:   10.7498/aps.63.197301
  • 出版年:   2014

▎ 摘  要

One-dimensional (1D) graphene superlattices were formed on a prototypical high index surface-Cu(410)-O. Atomic hydrogen adsorption on the superlattice was studied by using Raman spectroscopy, low-energy electron diffraction (LEED) and scanning tunneling microscopy (STM). Selective H adsorption due to the 1D modulation from the Cu substrate was observed in defect-free graphene area. Most H adatoms occupy the same positions in the 1D graphene superlattice stripes, as revealed by STM. This opens the possibility for further graphene property tuning through 1D superlattices. In addition to H monomers and dimers, a new type of trimer configuration was also observed.