• 文献标题:   Directed self-assembled crystalline oligomer domains on graphene and graphite
  • 文献类型:   Article
  • 作  者:   BALZER F, HENRICHSEN HH, KLARSKOV MB, BOOTH TJ, SUN R, PARISI J, SCHIEK M, BOGGILD P
  • 作者关键词:  
  • 出版物名称:   NANOTECHNOLOGY
  • ISSN:   0957-4484 EI 1361-6528
  • 通讯作者地址:   Univ Southern Denmark
  • 被引频次:   10
  • DOI:   10.1088/0957-4484/25/3/035602
  • 出版年:   2014

▎ 摘  要

We observe the formation of thin films of fibre-like aggregates from the prototypical organic semiconductor molecule para-hexaphenylene (p-6P) on graphite thin flakes and on monolayer graphene. Using atomic force microscopy, scanning electron microscopy, x-ray diffraction, polarized fluorescence microscopy, and bireflectance microscopy, the molecular orientations on the surface are deduced and correlated to both the morphology as well as to the high-symmetry directions of the graphitic surface: the molecules align with their long axis at +11 degrees with respect to a high-symmetry direction. The results show that the graphene surface can be used as a growth substrate to direct the self-assembly of organic molecular thin films and nanofibres, both with and without lithographical processing.