{ "id": "2305.02853", "version": "v1", "published": "2023-05-04T14:14:29.000Z", "updated": "2023-05-04T14:14:29.000Z", "title": "Optical Signatures of Förster-induced energy transfer in organic/TMD heterostructures", "authors": [ "Joshua J. P. Thompson", "Marina Gerhard", "Gregor Witte", "Ermin Malic" ], "categories": [ "cond-mat.mes-hall" ], "abstract": "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 F\\\"{o}rster interaction on exciton dynamics and optics in a WSe$_2$/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 F\\\"{o}rster 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.", "revisions": [ { "version": "v1", "updated": "2023-05-04T14:14:29.000Z" } ], "analyses": { "keywords": [ "förster-induced energy transfer", "organic/tmd heterostructures", "optical signatures", "hybrid van der waals heterostructures", "transition metal dichalcogenides" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }