Understanding electron transport through a single molecule bridging between metal electrodes is a central issue in the field of the molecular electronics. In this seminar, I discuss the fabrication and electron transport properties of single π-conjugated molecule junctions, which includes benzene and π-stacked molecules. After brief introduction of single molecule junction, I discuss the characterization of the single benzene molecule junction using inelastic electron tunneling spectroscopy and shot noise. Then, I review electron transport through the π-stacked system using π-stacked aromatic molecules enclosed within self-assembled coordination cages. The electron transport in the π-stacked systems was found to be efficient at the single-molecule level, providing insight into the design of conductive materials.
