Physics – Condensed Matter – Materials Science
Scientific paper
2008-02-18
J. Am. Chem. Soc. 2008, 130, 318-326
Physics
Condensed Matter
Materials Science
19 pages, 9 figures, 1 table; published version
Scientific paper
10.1021/ja0762386
Recent STM molecular break-junction experiments have revealed multiple series of peaks in the conductance histograms of alkanedithiols. To resolve a current controversy, we present here an in-depth study of charge transport properties of Au|alkanedithiol|Au junctions. Conductance histograms extracted from our STM measurements unambiguously confirm features showing more than one set of junction configurations. Based on quantum chemistry calculations, we propose that certain combinations of different sulfur-gold couplings and trans/gauche conformations act as the driving agents. The present study may have implications for experimental methodology: whenever conductances of different junction conformations are not statistically independent, the conductance histogram technique can exhibit a single series only, even though a much larger abundance of microscopic realizations exists.
Arnold Andreas
Bagrets Alexei
Evers Ferdinand
Li Chen
Pobelov Ilya
No associations
LandOfFree
Charge Transport in Single Au|Alkanedithiol|Au Junctions: Coordination Geometries and Conformational Degrees of Freedom does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Charge Transport in Single Au|Alkanedithiol|Au Junctions: Coordination Geometries and Conformational Degrees of Freedom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charge Transport in Single Au|Alkanedithiol|Au Junctions: Coordination Geometries and Conformational Degrees of Freedom will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-197331