5:30pm - 6:30pm
The Miller Room 328 Havemeyer
New York, NY 10027
Abstract: The ability to control charge transport across single-molecule devices using light would provide an important break-through towards the expansion of functionality at the nanometer scale. Photon-assisted tunneling and hot-electron transport represent two distinct mechanisms for achieving this goal. Using 4,4’-bipyridine bound to Au electrodes as a prototypical single-molecule junction, we report a 20-40% enhancement in conductance under near-infrared illumination. Performing polarization dependent experiments shows that hot-electron transport dominates any photon-assisted tunneling, which is confirmed using a simple Landauer-like model for electron transport.
pizza will be provided!!!!
Tuesday, March 21, 2017 at 5:30pm
Room 328 Havemeyer (Miller Seminar Room)
Department of Chemistry, Columbia University, Havemeyer Hall, 3000 Broadway, New York, NY 10027, USA | 212-854-2202 | http://chem.columbia.edu/