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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Booth, Timothy
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Topics
Publications (9/9 displayed)
- 2024Mapping nanoscale carrier confinement in polycrystalline graphene by terahertz spectroscopycitations
- 2023Photon superbunching in cathodoluminescence of excitons in WS2 monolayercitations
- 2022Chemical Vapor-Deposited Graphene on Ultraflat Copper Foils for van der Waals Hetero-Assemblycitations
- 2017Sputtering an exterior metal coating on copper enclosure for large-scale growth of single-crystalline graphenecitations
- 2016Copper Oxidation through Nucleation Sites of Chemical Vapor Deposited Graphenecitations
- 2014Pattern recognition approach to quantify the atomic structure of graphenecitations
- 2013Graphene Based Terahertz Absorber Designed With Effective Surface Conductivity Approach
- 2011In situ transmission electron microscopy analyses of thermally annealed self catalyzed GaAs nanowires grown by molecular beam epitaxy
- 2010Customizable in situ TEM devices fabricated in freestanding membranes by focused ion beam millingcitations
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article
Photon superbunching in cathodoluminescence of excitons in WS2 monolayer
Abstract
<p>Cathodoluminescence spectroscopy in conjunction with second-order auto-correlation measurements of g 2 ( τ ) allows to extensively study the synchronization of photon emitters in low-dimensional structures. Co-existing excitons in two-dimensional transition metal dichalcogenide monolayers provide a great source of identical photon emitters which can be simultaneously excited by an electron. Here, we demonstrate large photon bunching with g 2 ( 0 ) up to 156 ± 16 of a tungsten disulfide monolayer (WS<sub>2</sub>), exhibiting a strong dependence on the electron-beam current. To further improve the excitation synchronization and the electron-emitter interaction, we show exemplary that the careful selection of a simple and compact geometry—a thin, monocrystalline gold nanodisk—can be used to realize a record-high bunching g 2 ( 0 ) of up to 2152 ± 236 . This approach to control the electron excitation of excitons in a WS<sub>2</sub> monolayer allows for the synchronization of photon emitters in an ensemble, which is important to further advance light information and computing technologies.</p>