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

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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
CitationsWeb of Science® Times Cited: No match on DOI

ID: 88453236