Electron transfer dynamics of bistable single-molecule junctions

被引:36
作者
Danilov, Andrey V.
Kubatkin, Sergey E.
Kafanov, Sergey G.
Flensberg, Karsten
Bjornholm, Thomas
机构
[1] Univ Copenhagen, Niels Bohr Inst, NanoSci Ctr, DK-2100 Copenhagen, Denmark
[2] Univ Copenhagen, Dept Chem, DK-2100 Copenhagen, Denmark
[3] Chalmers Univ Technol, Dept Microtechnol & Nanosci, S-41296 Gothenburg, Sweden
关键词
D O I
10.1021/nl0612087
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We present transport measurements of single-molecule junctions bridged by a molecule with three benzene rings connected by two double bonds and with thiol end-groups that allow chemical binding to gold electrodes. The I-V curves show switching behavior between two distinct states. By statistical analysis of the switching events, we show that a 300 meV mode mediates the transition between the two states. We propose that breaking and reformation of a S-H bond in the contact zone between molecule and electrode explains the observed bistability.
引用
收藏
页码:2184 / 2190
页数:7
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