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Issue 64, 2014
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Self-assembled organic monolayers on epitaxial graphene with enhanced structural and thermal stability

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Abstract

Scanning tunnelling microscopy and X-ray reflectivity are used to characterize adlayers of perylenetetracarboxylic diimide (PTCDI) deposited on epitaxial graphene (EG) on SiC(0001). PTCDI adopts a herringbone structural phase on EG/SiC that can accommodate sub-5 nm voids with molecularly defined boundaries and isolated molecular vacancies at room temperature. The PTCDI monolayer remains intact up to substrate temperatures of ∼260 °C, thus demonstrating enhanced thermal stability compared to previously studied perylene derivatives on EG/SiC.

Graphical abstract: Self-assembled organic monolayers on epitaxial graphene with enhanced structural and thermal stability

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Publication details

The article was received on 14 Apr 2014, accepted on 10 Jun 2014 and first published on 13 Jun 2014


Article type: Communication
DOI: 10.1039/C4CC02761B
Citation: Chem. Commun., 2014,50, 8852-8855
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    Self-assembled organic monolayers on epitaxial graphene with enhanced structural and thermal stability

    H. J. Karmel, J. J. Garramone, J. D. Emery, S. Kewalramani, M. J. Bedzyk and M. C. Hersam, Chem. Commun., 2014, 50, 8852
    DOI: 10.1039/C4CC02761B

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