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Varade V, Haider G, Slobodeniuk A, Korytar R, Novotny T, Holy V, Miksatko J, Plsek J, Sykora J, Basova M, Zacek M, Hof M, Kalbac M, Vejpravova J. Chiral Light Emission from a Hybrid Magnetic Molecule-Monolayer Transition Metal Dichalcogenide Heterostructure. ACS Nano 2023; 17:2170-2181. [PMID: 36652711 PMCID: PMC10017025 DOI: 10.1021/acsnano.2c08320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 01/13/2023] [Indexed: 06/17/2023]
Abstract
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.
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Affiliation(s)
- Vaibhav Varade
- Department
of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121
16Prague 2, Czech
Republic
| | - Golam Haider
- J.
Heyrovsky Institute of Physical Chemistry, Dolejskova 3, 182
23Prague 8, Czech
Republic
| | - Artur Slobodeniuk
- Department
of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121
16Prague 2, Czech
Republic
| | - Richard Korytar
- Department
of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121
16Prague 2, Czech
Republic
| | - Tomas Novotny
- Department
of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121
16Prague 2, Czech
Republic
| | - Vaclav Holy
- Department
of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121
16Prague 2, Czech
Republic
| | - Jiri Miksatko
- J.
Heyrovsky Institute of Physical Chemistry, Dolejskova 3, 182
23Prague 8, Czech
Republic
| | - Jan Plsek
- J.
Heyrovsky Institute of Physical Chemistry, Dolejskova 3, 182
23Prague 8, Czech
Republic
| | - Jan Sykora
- J.
Heyrovsky Institute of Physical Chemistry, Dolejskova 3, 182
23Prague 8, Czech
Republic
| | - Miriam Basova
- Department
of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121
16Prague 2, Czech
Republic
| | - Martin Zacek
- Department
of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121
16Prague 2, Czech
Republic
| | - Martin Hof
- J.
Heyrovsky Institute of Physical Chemistry, Dolejskova 3, 182
23Prague 8, Czech
Republic
| | - Martin Kalbac
- J.
Heyrovsky Institute of Physical Chemistry, Dolejskova 3, 182
23Prague 8, Czech
Republic
| | - Jana Vejpravova
- Department
of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121
16Prague 2, Czech
Republic
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