STM-based single-molecule optoelectronics

抄録

Control of optical properties of single molecules by plasmonic nanostructures is an important issue in plasmonics and nanophotonics, particularly valuable for the development of molecular optoelectronic devices and ultrasensitive high-resolution microscopic techniques. The nanocavity defined by the coinage-metal tip and substrate in a scanning tunneling microscope (STM) can provide highly localized and dramatically enhanced electromagnetic fields upon proper plasmonic resonant tuning, which can modify the excitation and emission of a single molecule inside and produce intriguing new optoelectronic phenomena. In this talk, I shall demonstrate two STM-based phenomena related to single-molecule optical spectroscopy.