Single-Molecule Junctions with Strong Molecule-Electrode Coupling

被引:25
作者
Taniguchi, Masateru [1 ,2 ]
Tsutsui, Makusu [1 ]
Shoji, Kohei [1 ]
Fujiwara, Hideki [3 ]
Kawai, Tomoji [1 ]
机构
[1] Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan
[2] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan
[3] Osaka Prefecture Univ, Grad Sch Sci, Dept Chem, Osaka 5998531, Japan
关键词
ANCHORING GROUPS; CONDUCTANCE;
D O I
10.1021/ja905248e
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We fabricated Au-TTF-Au (tetrathiafulvalene, TTF) and Au-TSF-Au (tetraselenafulvalene, TSF) single-molecule junctions using a nanofabricated mechanically controllable break junction. We found that Au-TSF-Au and Au-TTF-Au single-molecule junctions have one and two stable configurations, respectively, and that the Au-TTF-Au single-molecule conductance is Larger than that of Au-TSF-Au. The difference in single-molecule conductances of the two types of junctions originates from the difference in the strength of the molecule-electrode coupling through face-to-face overlapping configurations.
引用
收藏
页码:14146 / +
页数:4
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