Interpretation of Stochastic Events in Single-Molecule Measurements of Conductance and Transition Voltage Spectroscopy

被引：48

作者：

Baldea, Ioan ^{[1
,2
]}

机构：

[1] Univ Heidelberg, D-69120 Heidelberg, Germany

[2] ISS, NILPRP, RO-077125 Bucharest, Romania

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 18期

关键词：

CHARGE-TRANSPORT; JUNCTIONS; THERMOELECTRICITY; RESISTANCE; CONTACTS; METALS; WIRES; LONG;

D O I：

10.1021/ja302248h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The first simultaneous measurements of transition voltage (V-t) spectroscopy (TVS) and conductance (G) histograms (Guo et al., J. Am. Chem. Soc. 2011, 133, 19189) form a great case for studying stochastic effects, which are ubiquitous in molecular junctions. Here an interpretation of those data is proposed that emphasizes the different physical content of V-t and G and reveals that fluctuations in the molecular orbital alignment have a significantly larger impact on G than initially claimed. The present study demonstrates the usefulness of corroborating statistical information on different transport properties and gives support to TVS as a valuable investigative tool.

引用

页码：7958 / 7962

页数：5

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