Publikationsserver der Universitätsbibliothek Marburg

Titel:Optical signatures of Förster-induced energy transfer in organic/TMD heterostructures
Autor:Thompson, Joshua J. P.
Weitere Verfasser:Gerhard, Marina; Witte, Gregor; Malic, Ermin
Veröffentlicht:2023
URI:https://archiv.ub.uni-marburg.de/es/2024/0834
URN: urn:nbn:de:hebis:04-es2024-08344
DOI: https://doi.org/10.1038/s41699-023-00430-z
DDC:530 Physik
Publikationsdatum:2024-02-14
Lizenz:https://creativecommons.org/licenses/by/4.0

Dokument

Schlagwörter:

Summary:
Hybrid van der Waals heterostructures of organic semiconductors and transition metal dichalcogenides (TMDs) are promising candidates for various optoelectronic devices, such as solar cells and biosensors. Energy-transfer processes in these materials are crucial for the efficiency of such devices, yet they are poorly understood. In this work, we develop a fully microscopic theory describing the effect of the Förster interaction on exciton dynamics and optics in a WSe2/tetracene heterostack. We demonstrate that the differential absorption and time-resolved photoluminescence can be used to track the real-time evolution of excitons. We predict a strongly unidirectional energy transfer from the organic to the TMD layer. Furthermore, we explore the role temperature has in activating the Förster transfer and find a good agreement to previous experiments. Our results provide a blueprint to tune the light-harvesting efficiency through temperature, molecular orientation and interlayer separation in TMD/organic heterostructures.


* Das Dokument ist im Internet frei zugänglich - Hinweise zu den Nutzungsrechten