Hierarchical interactions and their influence upon the adsorption of organic molecules on a graphene film

Roos, Michael and Künzel, Daniela and Uhl, Benedikt and Huang, Hsin Hui and Brandao Alves, Otavio and Hoster, Harry E. and Gross, Axel and Behm, R. Jürgen (2011) Hierarchical interactions and their influence upon the adsorption of organic molecules on a graphene film. Journal of the American Chemical Society, 133 (24). pp. 9208-9211. ISSN 0002-7863

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Abstract

The competition between intermolecular interactions and lateral variations in the molecule-substrate interactions has been studied by scanning tunneling microscopy (STM), comparing the phase formation of (sub)monolayers of the organic molecule 2,4′-BTP on buckled graphene/Ru(0001) and Ag(111) oriented thin films on Ru(0001). On the Ag films, the molecules form a densely packed 2D structure, while on graphene/Ru(0001), only the areas between the maxima are populated. The findings are rationalized by a high corrugation in the adsorption potential for 2,4′-BTP molecules on graphene/Ru(0001). These findings are supported by temperature programmed desorption (TPD) experiments and theoretical results.

Item Type:
Journal Article
Journal or Publication Title:
Journal of the American Chemical Society
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1500/1505
Subjects:
ID Code:
84238
Deposited By:
Deposited On:
24 Jan 2017 11:52
Refereed?:
Yes
Published?:
Published
Last Modified:
21 Nov 2020 04:25