Analytical Sciences

Abstract − Analytical Sciences, 34(6), 639 (2018).

Evaluation of the Kinetic Property of Single-Molecule Junctions by Tunneling Current Measurements
Takanori HARASHIMA, Yusuke HASEGAWA, Manabu KIGUCHI, and Tomoaki NISHINO
Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguroku, Tokyo 152-8551, Japan
We investigated the formation and breaking of single-molecule junctions of two kinds of dithiol molecules by time-resolved tunneling current measurements in a metal nanogap. The resulting current trajectory was statistically analyzed to determine the single-molecule conductance and, more importantly, to reveal the kinetic property of the single-molecular junction. These results suggested that combining a measurement of the single-molecule conductance and statistical analysis is a promising method to uncover the kinetic properties of the single-molecule junction.