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박영석

Park, Young S.
Advanced Organic Materials Lab.
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Contact chemistry and single-molecule conductance: A comparison of phosphines, methyl sulfides, and amines

Author(s)
Park, Young S.Whalley, Adam C.Kamenetska, MariaSteigerwald, Michael L.Hybertsen, Mark S.Nuckolls, ColinVenkataraman, Latha
Issued Date
2007-12
DOI
10.1021/ja0773857
URI
https://scholarworks.unist.ac.kr/handle/201301/20049
Fulltext
http://pubs.acs.org/doi/abs/10.1021/ja0773857
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.129, no.51, pp.15768 - 15769
Abstract
We compare the low bias conductance of a series of alkanes terminated on their ends with dimethyl phosphines, methyl sulfides, and amines and find that junctions formed with dimethyl phosphine terminated alkanes have the highest conductance. We see unambiguous conductance signatures with these link groups, indicating that the binding is well-defined and electronically selective. This allows a detailed analysis of the single-molecule junction elongation properties which correlate well with calculations based on density functional theory
Publisher
AMER CHEMICAL SOC
ISSN
0002-7863
Keyword
ELECTRONIC TRANSPORTJUNCTIONSRESISTANCECIRCUITS

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