Title: Supramolecular pi-stacked assemblies of bis(urea)-substituted thiophene derivatives and their electronic properties probed with scanning tunneling microscopy and scanning tunneling spectroscopy
Authors: Gesquiere, AndrĂ© ×
De Feyter, Steven
De Schryver, Frans
Schoonbeek, F
van Esch, J
Kellogg, RM
Feringa, BL #
Issue Date: Jan-2001
Publisher: Amer chemical soc
Series Title: Nano letters vol:1 issue:4 pages:201-206
Abstract: In this contribution we investigated the two-dimensional (2D) supramolecular organization and electronic properties of two bis(urea)-substituted oligothiophene derivatives, containing two or three thiophene units (T2 and T3, respectively), at the solution/graphite interface with scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS). Because of the pi-stacking of the oligomers the observed zero conductance band gap in the I(V) curves of a ribbon is found to be considerably smaller than for an isolated oligothiophene molecule, indicating that there exists an effective conjugation in the pi-stacked ribbons on the surface.
ISSN: 1530-6984
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Chemistry - miscellaneous
Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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