• 文献标题:   Snap-Through Instability of Graphene on Substrates
  • 文献类型:   Article
  • 作  者:   LI T, ZHANG Z
  • 作者关键词:   graphene, nanopattern, morphology, instability, substrate regulation
  • 出版物名称:   NANOSCALE RESEARCH LETTERS
  • ISSN:   1931-7573 EI 1556-276X
  • 通讯作者地址:   Univ Maryland
  • 被引频次:   38
  • DOI:   10.1007/s11671-009-9460-1
  • 出版年:   2010

▎ 摘  要

We determine the graphene morphology regulated by substrates with herringbone and checkerboard surface corrugations. As the graphene-substrate interfacial bonding energy and the substrate surface roughness vary, the graphene morphology snaps between two distinct states: (1) closely conforming to the substrate and (2) remaining nearly flat on the substrate. Since the graphene morphology is strongly tied to the electronic properties of graphene, such a snap-through instability of graphene morphology can lead to desirable graphene electronic properties that could potentially enable graphene-based functional electronic components (e.g. nano-switches).