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Issue 32, 2011
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Molecules for organic electronics studied one by one

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Abstract

The electronic and geometrical structure of single difluoro-bora-1,3,5,7-tetraphenyl-aza-dipyrromethene (aza-BODIPY) molecules adsorbed on the Au(111) surface is investigated by low temperature scanning tunneling microscopy and spectroscopy in conjunction with ab initio density functional theory simulations of the density of states and of the interaction with the substrate. Our DFT calculations indicate that the aza-BODIPY molecule forms a chemical bond with the Au(111) substrate, with distortion of the molecular geometry and significant charge transfer between the molecule and the substrate. Nevertheless, most likely due to the low corrugation of the Au(111) surface, diffusion of the molecule is observed for applied bias in excess of 1 V.

Graphical abstract: Molecules for organic electronics studied one by one

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Article information


Submitted
31 Mar 2011
Accepted
18 Jul 2011
First published
28 Jul 2011

Phys. Chem. Chem. Phys., 2011,13, 14421-14426
Article type
Paper

Molecules for organic electronics studied one by one

J. Meyer, A. Wadewitz, Lokamani, C. Toher, R. Gresser, K. Leo, M. Riede, F. Moresco and G. Cuniberti, Phys. Chem. Chem. Phys., 2011, 13, 14421
DOI: 10.1039/C1CP20999J

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