New excitonic states at the TMDC/molecule interface (B15*)

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

The goal of the project is to explore excitonic physics in a hybrid inorganic-organic system (HIOS) composed of transition metal dichalcogenide (TMDC) monolayers with a low-density molecular submonolayer deposited onto it. We will use the HIOS to i) probe trapping of TMDC excitons by localized molecule-induced electric and magnetic fields and ii) reveal dark excitons in TMDCs. We expect to develop a comprehensive understanding of interactions between individual donor, acceptor, dipolar, and magnetic molecules on one hand, and neutral, charged, defect-bound TMDC excitons on the other hand. Among potential applications of the HIOS studied here are electrically and chemically-tunable single photon emitters, highly sensitive molecule sensors, and photodetectors.

• 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: Professor Dr. Kirill Bolotin