Gao Tengyang, Pan Zhichao, Cai Zhuanyun, Zheng Jueting, Tang Chun, Yuan Saisai, Zhao Shi Qiang, Bai Hua, Yang Yang, Shi Jia, Xiao Zongyuan, Liu Junyang, Hong Wenjing
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
College of Materials, Xiamen University, Xiamen 361005, China.
Chem Commun (Camb). 2021 Jul 20;57(58):7160-7163. doi: 10.1039/d1cc02111g.
Here, we report the switching among multiple conductance pathways achieved by sliding the scanning tunneling microscope tip among different binding sites under different electric fields. With an increase in the electric field, high molecular conductance states appear, suggesting the formation of different configurations in single-molecule junctions. The switch can be operated in situ and reversibly, which is also confirmed by the apparent conductance conversion in I-V measurements. Theoretical simulations also agree well with the experimental results, which implies that the electric field enables the possibility to trigger switching in single-molecule junctions.
在此，我们报告了通过在不同电场下将扫描隧道显微镜尖端在不同结合位点之间滑动而实现的多个电导途径之间的切换。随着电场的增加，出现了高分子电导状态，这表明在单分子结中形成了不同的构型。这种切换可以原位且可逆地操作，这也通过I-V测量中的表观电导转换得到了证实。理论模拟也与实验结果很好地吻合，这意味着电场使得在单分子结中触发切换成为可能。
