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

• Subject Area: Theoretical Condensed Matter Physics
• Term: from 2019 to 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 182087777

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.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 951: Hybrid Inorganic/Organic Systems for Opto-Electronics (HIOS)
• Applicant Institution: Humboldt-Universität zu Berlin
• Project Head: Professorin Dr. Katharina Franke