• 文献标题:   Template synthesis of armchair-edge graphene nanoribbons inside carbon nanotubes
  • 文献类型:   Article
  • 作  者:   KINNO Y, OMACHI H, SHINOHARA H
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS EXPRESS
  • ISSN:   1882-0778 EI 1882-0786
  • 通讯作者地址:   Nagoya Univ
  • 被引频次:   0
  • DOI:   10.7567/1882-0786/ab5895
  • 出版年:   2020

▎ 摘  要

We developed a template synthesis for armchair-edge graphene nanoribbons inside single-wall carbon nanotubes (SWCNTs). A direct vapor-phase reaction with 10,10 ' -dibromo-9,9 ' -bianthryl furnished armchair graphene nanoribbons with a width of seven carbon atoms (7-AGNRs) through dehalogenative polymerization and dehydrogenation cyclization within the cavities of the SWCNTs. High-resolution transmission electron microscopy studies revealed that the 7-AGNRs were twisted inside the nanotubes, and that their conformations sensitively changed with the diameter of the SWCNTs. The optical band gap of 7-AGNRs encapsulated in SWCNTs was estimated to be 2.1 eV from absorption spectroscopy measurements.