We employ a unique combination of scanning tunneling microscopy and tip-enhanced optics to understand surface chemistry and electronic transport at the single molecule level. This combination of techniques allows us to determine chemical structure and monitor electron-vibrational coupling with high sensitivity and spatial resolution. Nanostructures are built and characterized with atomic precision to study how charge transfer between molecules and the local environment influences reactivity and transport. These studies address questions related to potential computing, sensing, and energy conversion applications based on molecular systems.
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