Alice (and Bob) in Flatland

Blundo, Elena; Polimeni, Antonio

doi:10.1021/acs.nanolett.4c02702

Nano Lett.

2024

DOI: 10.1021/acs.nanolett.4c02702

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Alice (and Bob) in Flatland

Elena Blundo,

Antonio Polimeni

Abstract: 2D quantum materials have opened infinite doors, hosting intriguing phenomena and featuring incredible engineering potential. Whether these qualities can boost the use of 2D crystals for quantum applications remains an open field with yet unexplored paths.

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Probing the Nature of Single-Photon Emitters in a WSe₂ Monolayer by Magneto-Photoluminescence Spectroscopy

Serati de Brito,

Rosa,

Chaves

et al. 2024

Nano Lett.

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Monolayer transition metal dichalcogenides (TMDs) have emerged as promising materials to generate single-photon emitters (SPEs). While there are several previous reports in the literature about TMD-based SPEs, the precise nature of the excitonic states involved in them is still under debate. Here, we use magneto-optical techniques under in-plane and out-of-plane magnetic fields to investigate the nature of SPEs in WSe2 monolayers on glass substrates under different strain profiles. Our results reveal important changes on the exciton localization and, consequently, on the optical properties of SPEs. Remarkably, we observe an anomalous PL energy redshift with no significant changes of photoluminescence (PL) intensity under an in-plane magnetic field. We present a model to explain this redshift based on intervalley defect excitons under a parallel magnetic field. Overall, our results offer important insights into the nature of SPEs in TMDs, which are valuable for future applications in quantum technologies.

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Probing the Nature of Single-Photon Emitters in a WSe₂ Monolayer by Magneto-Photoluminescence Spectroscopy

Serati de Brito,

Rosa,

Chaves

et al. 2024

Nano Lett.

View full text Add to dashboard Cite

show abstract

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Alice (and Bob) in Flatland

Abstract: 2D quantum materials have opened infinite doors, hosting intriguing phenomena and featuring incredible engineering potential. Whether these qualities can boost the use of 2D crystals for quantum applications remains an open field with yet unexplored paths.

Cited by 1 publication

References 102 publications

Probing the Nature of Single-Photon Emitters in a WSe₂ Monolayer by Magneto-Photoluminescence Spectroscopy

Probing the Nature of Single-Photon Emitters in a WSe₂ Monolayer by Magneto-Photoluminescence Spectroscopy

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Alice (and Bob) in Flatland

Abstract: 2D quantum materials have opened infinite doors, hosting intriguing phenomena and featuring incredible engineering potential. Whether these qualities can boost the use of 2D crystals for quantum applications remains an open field with yet unexplored paths.

Cited by 1 publication

References 102 publications

Probing the Nature of Single-Photon Emitters in a WSe2 Monolayer by Magneto-Photoluminescence Spectroscopy

Probing the Nature of Single-Photon Emitters in a WSe2 Monolayer by Magneto-Photoluminescence Spectroscopy

Contact Info

Product

Resources

About

Probing the Nature of Single-Photon Emitters in a WSe₂ Monolayer by Magneto-Photoluminescence Spectroscopy

Probing the Nature of Single-Photon Emitters in a WSe₂ Monolayer by Magneto-Photoluminescence Spectroscopy