• 文献标题:   Electrical and Structural Feature of Monolayer Graphene Produced by Pulse Current Unzipping and Microwave Exfoliation of Carbon Nanotubes
  • 文献类型:   Article
  • 作  者:   KIM WS, MOON SY, PARK NH, HUH H, SHIM KB, HAM H
  • 作者关键词:  
  • 出版物名称:   CHEMISTRY OF MATERIALS
  • ISSN:   0897-4756
  • 通讯作者地址:   Korea Inst Ind Technol
  • 被引频次:   10
  • DOI:   10.1021/cm1020349
  • 出版年:   2011

▎ 摘  要

The electrical conductivity and structural properties of monolayer graphene (MLG) have been studied. MLG is fabricated from single-walled carbon nanotubes (SWCNTs) using high direct current pulse and microwave irradiation. Transformed MLG initially obtained from SWCNTs was not a stable planar structure because of its high surface energy. Therefore, they became stacked together to form the few-layer graphene structure. With the exfoliation process using an alkali metal, the stacked structure changes to a monolayer structure. A variety of characterizing techniques, such as a field emission scanning electron microscopy, high resolution transmission electron microscopy, high resolution Raman spectroscopy, and X-ray photoelectron spectroscopy were used for the analysis of MLG structures.