Probing the Molecule-Electrode Interface of Single-Molecule Junctions by Controllable Mechanical Modulations
Probing the Molecule-Electrode Interface of Single-Molecule Junctions by Controllable Mechanical Modulations
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DOI：
10.1021/jp101257y
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发表时间：
2010-05-13
影响因子：
3.7
通讯作者：
Xu, Bingqian
中科院分区：
文献类型：
--
作者：
Zhou, Jianfeng;Chen, Guojun;Xu, Bingqian
本文深入研究了受控机械调制下稳定分子结中分子-电极界面效应对电子输运性质的影响。通过监测和分析相应的调制电导和力的变化，我们隔离的分子终止基团和不同的接触配置对电子输运性质的影响。实验结果可以通过我们基于简单直接的模型开发的计算来理解。这一结果不仅有助于解决目前扫描隧道显微镜分子断裂结实验结果的不一致性，而且有助于对分子结电子输运机制的理解。
Presented here is an in-depth study to exploit the molecule-electrode interface effects on electronic transport properties in stabilized molecular junctions under controlled mechanical modulations. By monitoring and analyzing the conductance and force changes corresponding to the modulations, we isolated the effects of both the molecule terminating groups and the different contact configurations on electronic transport properties. The experimental results can be understood by our calculations developed based on simple and straightforward models. The results would be helpful not only to resolve the discrepancies of the recent scanning tunneling microscopy molecular break junction experiment results but also to add new insights into the understanding of the electronic transport mechanisms of molecular junctions.