Solvent-dependent conductance decay constants in single cluster junctions

Title
Solvent-dependent conductance decay constants in single cluster junctions
Authors
Bonnie ChoiBrian Capozzi안석훈Ari TurkiewiczGiacomo LovatColin NuckollsMichael L. SteigerwaldLatha VenkataramanXavier Roy
Issue Date
2016-03
Publisher
Chemical Science
Abstract
Single-molecule conductance measurements have focused primarily on organic molecular systems. Here, we carry out scanning tunneling microscope-based break-junction measurements on a series of metal chalcogenide Co6Se8 clusters capped with conducting ligands of varying lengths. We compare these measurements with those of individual free ligands and find that the conductance of these clusters and the free ligands have different decay constants with increasing ligand length. We also show, through measurements in two different solvents, 1-bromonaphthalene and 1,2,4-trichlorobenzene, that the conductance decay of the clusters depends on the solvent environment. We discuss several mechanisms to explain our observations.
URI
http://pubs.kist.re.kr/handle/201004/58763
ISSN
20416520
Appears in Collections:
KIST Publication > Article
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