Molecules for organic electronics studied one by one.

Journal Article (Journal Article)

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.

Full Text

Duke Authors

Cited Authors

  • Meyer, J; Wadewitz, A; Lokamani, ; Toher, C; Gresser, R; Leo, K; Riede, M; Moresco, F; Cuniberti, G

Published Date

  • August 2011

Published In

Volume / Issue

  • 13 / 32

Start / End Page

  • 14421 - 14426

PubMed ID

  • 21796307

Electronic International Standard Serial Number (EISSN)

  • 1463-9084

International Standard Serial Number (ISSN)

  • 1463-9076

Digital Object Identifier (DOI)

  • 10.1039/c1cp20999j


  • eng