• 文献标题:   Edge-closed graphene nanoribbons fabricated by spontaneous collapse of few-walled carbon nanotubes
  • 文献类型:   Article
  • 作  者:   LI YF
  • 作者关键词:  
  • 出版物名称:   PHYSICAL CHEMISTRY CHEMICAL PHYSICS
  • ISSN:   1463-9076 EI 1463-9084
  • 通讯作者地址:   Linyi Univ
  • 被引频次:   10
  • DOI:   10.1039/c3cp53785d
  • 出版年:   2014

▎ 摘  要

A simple method of fabricating graphene nanoribbons (GNRs) with closed edges by utilizing the spontaneous collapsing mechanism of few-walled carbon nanotubes (CNTs) is demonstrated. The diameter of the tube that can be used to fabricate GNRs should be larger than a critical value, which is 16.27, 24.41 and 39.15 angstrom for single-, double-and triple-walled CNTs, respectively. The geometry of fabricated multi-layered GNRs consists of two highly strained bulbs on the two edges and a flat region with an interlayer distance of 3.4 angstrom. Defects at the initial tube wall affect the collapsing speed and GNR configuration. The encapsulated molecules slow the collapsing speed, and may even hinder the collapse of the tube.