期刊论文

Xiang, D;Fan, ZQ

英文

CHEMICAL SCIENCE

2041-6520

2023

14

41

11456-11465

10.1039/d3sc03892k

We acknowledge the financial support from the National Key Ramp;D Program of China (2021YFA1200103), the National Natural Science Foundation of China (22273041, 91950116, 11804170), and the Natural Science Foundation of Tianjin (19JCZDJC31000, 19JCJQJC609 [2021YFA1200103]; National Key Ramp;D Program of China [22273041, 91950116, 11804170]; National Natural Science Foundation of China [19JCZDJC31000, 19JCJQJC60900, 22JCYBJC01310]; Natural Science Foundation of Tianjin

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The molecular binding orientation with respect to the electrode plays a pivotal role in determining the performance of molecular devices. However, accomplishing in situ modulation of single-molecule binding orientation remains a great challenge due to the lack of suitable testing systems and characterization approaches. To this end, by employing a developed STM-BJ technique, we demonstrate that the conductance of pyridine-anchored molecular junctions decreases as the applied voltage increases, which is determined by the repeated formation of thousands of gold-molecule-gold dynamic break juncti...