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Title: Electronic properties of a pi-stacked pyrene derivative at a liquid-solid interface studied with scanning tunneling spectroscopy
Authors: Uji-I, Hiroshi ×
Nishio, S
Fukumura, H #
Issue Date: Jun-2005
Publisher: Elsevier
Series Title: Chemical Physics Letters vol:408 issue:1-3 pages:112-117
Abstract: Two kinds of self-assembled structures of 1-pyrenehexadecanoic acid at a solution-graphite interface were investigated using scanning tunneling microscopy. The pyrenyl groups of 1-pyrenehexadecanoic acid formed a pi-stacked assembly when it was co-adsorbed with 4,4'-dipyridyl although the pyrenyl groups remained isolated in the one-component self-assembled structure. On the basis of the Davidov splitting model, the shift of the pyrenyl group's electronic levels, upon formation of the pi-stacked assembly, was estimated from the observed structures. The energy shift was found to be consistent with the observed change in the electron-tunneling spectra between these two different structures. (c) 2005 Elsevier B.V. All rights reserved.
URI: 
ISSN: 0009-2614
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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