• 文献标题:   Metal adatoms on graphene and hexagonal boron nitride: Towards rational design of self-assembly templates
  • 文献类型:   Article
  • 作  者:   YAZYEV OV, PASQUARELLO A
  • 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 Calif Berkeley
  • 被引频次:   75
  • DOI:   10.1103/PhysRevB.82.045407
  • 出版年:   2010

▎ 摘  要

Periodically corrugated epitaxial graphene and hexagonal boron nitride (h-BN) on metallic substrates are considered as perspective templates for the self-assembly of nanoparticles arrays. By using first-principles calculations, we determine binding energies and diffusion activation barriers of metal adatoms on graphene and h-BN. The observed chemical trends can be understood in terms of the interplay between charge transfer and covalent bonding involving the adatom d electrons. We further investigate the electronic effects of the metallic substrate and find that periodically corrugated templates based on graphene in combination with strong interactions at the metal/graphene interface are the most suitable for the self-assembly of highly regular nanoparticle arrays.