• 文献标题:   Microscopic characterisation of suspended graphene grown by chemical vapour deposition
  • 文献类型:   Article
  • 作  者:   BIGNARDI L, VAN DORP WF, GOTTARDI S, IVASHENKO O, DUDIN P, BARINOV A, DE HOSSON JTM, STOHR M, RUDOLF P
  • 作者关键词:  
  • 出版物名称:   NANOSCALE
  • ISSN:   2040-3364
  • 通讯作者地址:   Univ Groningen
  • 被引频次:   10
  • DOI:   10.1039/c3nr02386a
  • 出版年:   2013

▎ 摘  要

We present a multi-technique characterisation of graphene grown by chemical vapour deposition (CVD) and thereafter transferred to and suspended on a grid for transmission electron microscopy (TEM). The properties of the electronic band structure are investigated by angle-resolved photoelectron spectromicroscopy, while the structural and crystalline properties are studied by TEM and Raman spectroscopy. We demonstrate that the suspended graphene membrane locally shows electronic properties comparable with those of samples prepared by micromechanical cleaving of graphite. Measurements show that the area of high quality suspended graphene is limited by the folding of the graphene during the transfer.