• 文献标题:   Precise Control of the Number of Layers of Graphene by Picosecond Laser Thinning
  • 文献类型:   Article
  • 作  者:   LIN Z, YE XH, HAN JP, CHEN Q, FAN PX, ZHANG HJ, XIE D, ZHU HW, ZHONG ML
  • 作者关键词:  
  • 出版物名称:   SCIENTIFIC REPORTS
  • ISSN:   2045-2322
  • 通讯作者地址:   Tsinghua Univ
  • 被引频次:   48
  • DOI:   10.1038/srep11662
  • 出版年:   2015

▎ 摘  要

The properties of graphene can vary as a function of the number of layers (NOL). Controlling the NOL in large area graphene is still challenging. In this work, we demonstrate a picosecond (ps) laser thinning removal of graphene layers from multi-layered graphene to obtain desired NOL when appropriate pulse threshold energy is adopted. The thinning process is conducted in atmosphere without any coating and it is applicable for graphene films on arbitrary substrates. This method provides many advantages such as one-step process, non-contact operation, substrate and environment-friendly, and patternable, which will enable its potential applications in the manufacturing of graphene-based electronic devices.