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HL: Fachverband Halbleiterphysik
HL 13: Poster Session III
HL 13.12: Poster
Tuesday, September 28, 2021, 13:30–16:30, P
Laser controlled charge-carrier dynamics in pyrene-doped MoSe2 monolayer — •Matheus Jacobs1, Jannis Krumland1, and Caterina Cocchi1,2 — 1Institut für Physik und IRIS Adlershof, Humboldt-Universität zu Berlin, Berlin, Germany — 2Institute of Physics, Carl von Ossietzky Universität Oldenburg,26129 Oldenburg, Germany
In the last years, the interest in transition metal dichalcogenide monolayers have grown enormously due to their unique electronic structure and light-matter coupling properties. Combining these materials with carbon conjugated molecules can give rise to new materials with enhanced opto-electronic performance, specially when excited by coherent radiation. In the framework of real-time time-dependent density functional theory, we investigate the ultrafast charge-carrier dynamics at the interface formed by pyrene molecules physisorbed on a MoSe2 monolayer. By monitoring the effect of the incident pulse intensity on the energy and the electron transfer on the hybrid heterostructure, we identify a striking nonlinear response of the system, which in turn impacts the charge-carrier dynamics and the nature of cahrge transfer from the inorganic to the organic components.