• 文献标题:   Controlled Folding of Graphene: GraFold Printing
  • 文献类型:   Article
  • 作  者:   HALLAM T, SHAKOURI A, POLIANI E, ROONEY AP, IVANOV I, POTIE A, TAYLOR HK, BONN M, TURCHINOVICH D, HAIGH SJ, MAULTZSCH J, DUESBERG GS
  • 作者关键词:   graphene patterning, folding, contact printing, nanotechnology, spectroscopy
  • 出版物名称:   NANO LETTERS
  • ISSN:   1530-6984 EI 1530-6992
  • 通讯作者地址:   Univ Dublin Trinity Coll
  • 被引频次:   15
  • DOI:   10.1021/nl503460p
  • 出版年:   2015

▎ 摘  要

We have used elastomeric stamps with periodically varying adhesive properties to introduce structure and print folded graphene films. The structure of the induced folds is investigated with scanning probe techniques, high-resolution electron-microscopy, and tip-enhanced Raman spectroscopy. Furthermore, a finite element model is developed to show the fold formation process. Terahertz spectroscopy reveals induced anisotropy of carrier mobility along, and perpendicular to, the graphene folds. Graphene fold printing is a new technique which allows for significant modification of the properties of 2D materials without damaging or chemically modifying them.