• 文献标题:   Quantifying the growth of individual graphene layers by in situ environmental transmission electron microscopy
  • 文献类型:   Article
  • 作  者:   KLING J, HANSEN TW, WAGNER JB
  • 作者关键词:  
  • 出版物名称:   CARBON
  • ISSN:   0008-6223 EI 1873-3891
  • 通讯作者地址:   Tech Univ Denmark
  • 被引频次:   5
  • DOI:   10.1016/j.carbon.2015.11.056
  • 出版年:   2016

▎ 摘  要

The growth dynamics of layered carbon is studied by means of in situ transmission electron microscopy in order to obtain a deeper insight into the growth by chemical vapor deposition, which at present is the technique of choice for growing layered carbon. In situ growth of layered carbon structures on nickel using acetylene as carbon precursor gas is studied in the electron microscope at various gas pressures. By following the growth of individual graphene layers on the Ni surface, local growth rates are determined as a function of precursor pressure. Two growth regimes are identified, an initial rapid growth, which does not show a strong dependence on pressure, followed by a slower growth with a strong pressure dependence. (C) 2015 Elsevier Ltd. All rights reserved.