Issue 64, 2014

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

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

Supplementary files

Article information

Article type
Communication
Submitted
14 Apr 2014
Accepted
10 Jun 2014
First published
13 Jun 2014

Chem. Commun., 2014,50, 8852-8855

Author version available

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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