Measurement of single-molecule conductance

被引:350
作者
Chen, Fang [1 ]
Hihath, Joshua
Huang, Zhifeng
Li, Xiulan
Tao, N. J.
机构
[1] Arizona State Univ, Dept Elect Engn, Tempe, AZ 85287 USA
[2] Arizona State Univ, Ctr Solid State Elect Res, Tempe, AZ 85287 USA
基金
美国国家科学基金会;
关键词
molecular electronics; break junction; quantum point contact;
D O I
10.1146/annurev.physchem.58.032806.104523
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
What is the conductance of a single molecule? This basic and seemingly simple question has been a difficult one to answer for both experimentalists and theorists. To determine the conductance of a molecule, one must wire the molecule reliably to at least two electrodes. The conductance of the molecule thus depends not only on the intrinsic properties of the molecule, but also on the electrode materials. Furthermore, the conductance is sensitive to the atomic-level details of the molecule-electrode contact and the local environment of the molecule. Creating identical contact geometries has been a challenging experimental problem, and the lack of atomic-level structural information of the contacts makes it hard to compare calculations with measurements. Despite the difficulties, researchers have made substantial advances in recent years. This review provides an overview of the experimental advances, discusses the advantages and drawbacks of different techniques, and explores remaining issues.
引用
收藏
页码:535 / 564
页数:30
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