Interplay of Energy and Charge Transfer in WSe<sub>2</sub>/CrSBr Heterostructures
van der Waals heterostructures (vdWHs) composed of transition-metal dichalcogenides (TMDs) and layered magnetic semiconductors offer great opportunities to manipulate the exciton and valley properties of TMDs. Here, we present magneto-photoluminescence (PL) studies in a WSe<sub>2</sub> monolayer (ML) on a CrSBr crystal, an anisotropic layered antiferromagnetic semiconductor. Our results reveal the unique behavior of each of the ML-WSe<sub>2</sub> PL peaks under a magnetic field that is distinct from the pristine case. An intriguing feature is the clear enhancement of the PL intensity that we observe each time the external magnetic field tunes the energy of an exciton in CrSBr into resonance with one of the optical states of WSe<sub>2</sub>. This result suggests a magnetic field-controlled resonant energy transfer (RET) beyond other effects reported in similar structures. Our work provides deep insight into the importance of different mechanisms in magnetic vdWHs and underscores its great potential for light harvesting and emission enhancement of two-dimensional materials.
Authors
- Florian Dirnberger (ORCID: https://orcid.org/0000-0002-2932-2850)
- Caique Serati de Brito (ORCID: https://orcid.org/0000-0003-3992-1731)
- Ingrid D. Barcelos (ORCID: https://orcid.org/0000-0002-5778-7161)
- Herre S. J. van der Zant (ORCID: https://orcid.org/0000-0002-5385-0282)
- Cesar Rabahi (ORCID: https://orcid.org/0000-0002-9054-4997)
- José Roberto de Toledo (ORCID: https://orcid.org/0000-0001-9785-0279)
- Josep Ingla‐Aynés (ORCID: https://orcid.org/0000-0001-9179-1570)
- Christian Schüller (ORCID: https://orcid.org/0000-0002-6043-5263)
- Talieh S. Ghiasi (ORCID: https://orcid.org/0000-0002-3490-5356)
- Alisson R. Cadore (ORCID: https://orcid.org/0000-0003-1081-0915)
- Bárbara L. T. Rosa (ORCID: https://orcid.org/0000-0001-9433-3532)
- Paulo E. Faria (ORCID: https://orcid.org/0000-0002-1161-2059)
- Stephan Reitzenstein (ORCID: https://orcid.org/0000-0002-1381-9838)
- Ana Carolina Ferreira de Brito (ORCID: https://orcid.org/0000-0002-7878-7451)
- Y. Galvão Gobato (ORCID: https://orcid.org/0000-0003-2251-0426)
Institutions
- University of Central Florida (US)
- Universidade Federal de São Carlos (BR)
- Universidade Federal de Mato Grosso (BR)
- Tumaini University (TZ)
- Brazilian Synchrotron Light Laboratory (BR)
- Instituto de Física La Plata (AR)
- Kavli Energy NanoScience Institute (US)
- Munich Center for Quantum Science and Technology (DE)
- Brazilian Center for Research in Energy and Materials (BR)
- Zentrum für Pathologie und Zytodiagnostik (DE)
- Institut für Technische und Angewandte Physik (Germany) (DE)
- Laboratório Nacional de Nanotecnologia
- Tumkur University (IN)
- University of Regensburg (DE)
- Technical University of Munich (DE)
- Delft University of Technology (NL)
Publication Details
- Journal
- Nano Letters
- Published
- 2025-08-22
- DOI
- https://doi.org/10.1021/acs.nanolett.5c03150
- Citations
- 3
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 1.55
Funders
- Deutsche Forschungsgemeinschaft
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- H2020 Future and Emerging Technologies
- HORIZON EUROPE Marie Sklodowska-Curie Actions