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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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Moreels, Iwan
Ghent University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023Single-photon emitting arrays by capillary assembly of colloidal semiconductor CdSe/CdS/SiO2 nanocrystalscitations
- 2023Charge carrier dynamics in colloidally synthesized monolayer MoX2 nanosheetscitations
- 2020Surface spin magnetism controls the polarized exciton emission from CdSe nanoplateletscitations
- 2020Near-Edge Ligand Stripping and Robust Radiative Exciton Recombination in CdSe/CdS Core/Crown Nanoplateletscitations
- 2020Near-edge ligand stripping and robust radiative exciton recombination in CdSe/CdS core/crown nanoplateletscitations
- 2019Extending the Colloidal Transition Metal Dichalcogenide Library to ReS2 Nanosheets for Application in Gas Sensing and Electrocatalysiscitations
- 2016Piezoelectric Control of the Exciton Wave Function in Colloidal CdSe/CdS Nanocrystalscitations
- 2009Colloidal semiconductor quantum dots : from synthesis to photonic applications
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article
Single-photon emitting arrays by capillary assembly of colloidal semiconductor CdSe/CdS/SiO2 nanocrystals
Abstract
The controlled placement of colloidal semiconductor nanocrystals (NCs) onto planar surfaces is crucial for scalable fabrication of single-photon emitters on-chip, which are critical elements of optical quantum computing, communication, and encryption. The positioning of colloidal semiconductor NCs such as metal chalcogenides or perovskites is still challenging, as it requires a nonaggressive fabrication process to preserve the optical properties of the NCs. In this work, periodic arrays of 2500 nanoholes are patterned by electron beam lithography in a poly(methyl methacrylate) (PMMA) thin film on indium tin oxide/glass substrates. Colloidal core/shell CdSe/CdS NCs, functionalized with a SiO2 capping layer to increase their size and facilitate deposition into 100 nm holes, are trapped with a close to optimal Poisson distribution into the PMMA nanoholes via a capillary assembly method. The resulting arrays of NCs contain hundreds of single-photon emitters each. We believe this work paves the way to an affordable, fast, and practical method for the fabrication of nanodevices, such as singlephoton-emitting light-emitting diodes based on colloidal semiconductor NCs.