Contact chemistry and single-molecule conductance: A comparison of phosphines, methyl sulfides, and amines

被引：338

作者：

Park, Young S. ^{[2
,3
]}

Whalley, Adam C. ^{[2
,3
]}

Kamenetska, Maria ^{[3
]}

Steigerwald, Michael L. ^{[2
]}

Hybertsen, Mark S. ^{[3
,4
]}

Nuckolls, Colin ^{[2
,3
]}

Venkataraman, Latha ^{[1
,3
]}

机构：

[1] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA

[2] Columbia Univ, Dept Chem, New York, NY 10027 USA

[3] Columbia Univ, Ctr Electron Transport Microstruct, New York, NY 10027 USA

[4] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 51期

关键词：

D O I：

10.1021/ja0773857

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：15768 / +

页数：3

共 16 条

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