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Chiral Light Emission from a Hybrid Magnetic Molecule-Monolayer Transition Metal Dichalcogenide Heterostructure
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SYSNO ASEP 0567993 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Chiral Light Emission from a Hybrid Magnetic Molecule-Monolayer Transition Metal Dichalcogenide Heterostructure Author(s) Varade, V. (CZ)
Haider, Golam (UFCH-W) ORCID, RID
Slobodeniuk, A. (CZ)
Korytár, R. (CZ)
Novotný, T. (CZ)
Holý, V. (CZ)
Mikšátko, Jiří (UFCH-W)
Plšek, Jan (UFCH-W) RID, ORCID
Sýkora, Jan (UFCH-W) RID
Basová, M. (CZ)
Žáček, M. (CZ)
Hof, Martin (UFCH-W) RID, ORCID
Kalbáč, Martin (UFCH-W) RID, ORCID
Vejpravová, J. (CZ)Source Title ACS Nano. - : American Chemical Society - ISSN 1936-0851
Roč. 17, č. 3 (2023), s. 2170-2181Number of pages 12 s. Language eng - English Country US - United States Keywords Layered materials ; molecular magnets ; nonradiative energy drain mechanism ; transition metal dichalcogenides ; valley polarization ; valley−spin hybrid materials Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects GX20-08633X GA ČR - Czech Science Foundation (CSF) GX19-26854X GA ČR - Czech Science Foundation (CSF) LM2015073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UFCH-W - RVO:61388955 UT WOS 000922935300001 EID SCOPUS 85146554440 DOI 10.1021/acsnano.2c08320 Annotation Hybrid layered materials assembled from atomically thin crystals and small molecules bring great promises in pushing the current information and quantum technologies beyond the frontiers. We demonstrate here a class of layered valley-spin hybrid (VSH) materials composed of a monolayer two-dimensional (2D) semiconductor and double-decker single molecule magnets (SMMs). We have materialized a VSH prototype by thermal evaporation of terbium bis-phthalocyanine onto a MoS2 monolayer and revealed its composition and stability by both microscopic and spectroscopic probes. The interaction of the VSH components gives rise to the intersystem crossing of the photogenerated carriers and moderate p-doping of the MoS2 monolayer, as corroborated by the density functional theory calculations. We further explored the valley contrast by helicity-resolved photoluminescence (PL) microspectroscopy carried out down to liquid helium temperatures and in the presence of the external magnetic field. The most striking feature of the VSH is the enhanced A exciton-related valley emission observed at the out-of-resonance condition at room temperature, which we elucidated by the proposed nonradiative energy drain transfer mechanism. Our study thus demonstrates the experimental feasibility and great promises of the ultrathin VSH materials with chiral light emission, operable by physical fields for emerging opto-spintronic, valleytronic, and quantum information concepts. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0339313
Number of the records: 1