Local electronic structure of single molecules and molecular nanostructures coupled to monolayers of transition metal dichalcogenides (A14*)

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This project aims at resolving fundamental processes of energy level alignment, charge transfer and screening at the interface of an organic overlayer in contact to a monolayer of a transition metal dichalcogenide (TMDC). Employing scanning tunneling microscopy (STM), atomic force microscopy (AFM) and their related spectroscopies we resolve these properties with atomic-scale resolution. Thus, we will be able to precisely identify screening lengths, which are significantly larger in two-dimensional materials than in the traditional three-dimensional counterparts. Furthermore, we will probe and create individual defects and investigate how they locally modify the energy level alignment of attached molecules.