Abstract
We compared the single molecular plateau length by varying the piezo pulling speed for the Ag electrodes using a scanning tunneling microscope‐based break junction technique. We found that the molecular plateau length was longer for a high pulling speed than that for a low pulling speed. Furthermore, we observed that the gap distance between the top and bottom Ag electrodes after the metal point contact was ruptured varied with a piezo pulling speed, which is attributed to the atomic diffusion of Ag in pulling a piezo. We also found that the molecular plateau length has no pulling speed dependence for Au electrodes. Our results open a new path to characterize the electrical or mechanical properties of the organic devices based on a single molecule.
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