Directed self-assembled crystalline oligomer domains on graphene and graphite: Paper

Frank Balzer, Henrik Hartmann Henrichsen, Mikkel Buster Klarskov, Tim Booth, Rong Sun, Jürgen Parisi, Manuela Schiek, Peter Bøggild

Research output: Contribution to journalJournal articleResearchpeer-review

1 Downloads (Pure)

Abstract

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° 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.
Original languageEnglish
JournalNanotechnology
Volume25
Issue number3
Pages (from-to)035602
ISSN0957-4484
DOIs
Publication statusPublished - 2014

Cite this