Mao Jin-Chuan, Huang Miao-Ling, Huang Bing, Zhou Xiao-Yi, Zheng Ju-Fang, Shao Yong, Niu Zhen-Jiang, Zhou Xiao-Shun
Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, Zhejiang 321004, China.
J Nanosci Nanotechnol. 2018 Mar 1;18(3):2085-2088. doi: 10.1166/jnn.2018.14255.
We have measured the conductance of pyrazine molecular junction contacting with Cu and Ag electrodes by using an electrochemical jump-to-contact based scanning tunneling microscopy break junction (ECSTM-BJ). While conductance values of 10-2.8 and 10-3.7 G0 are measured for pyrazineCu electrode, 10-2.1 and 10-3.3 G0 are found for pyrazine-Ag contact. The result shows that the conductance of pyrazine with Ag electrode is larger than that with Cu electrode, which can contribute to the different efficiency of electron transport along the molecular junction between Ag and Cu electrodes. The current work shows the important role for the electrode material in electron transport.
