| People | Locations | Statistics |
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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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Barjon, Julien
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Benchmarking the integration of hexagonal boron nitride crystals and thin films into graphene-based van der Waals heterostructurescitations
- 2023Vertical pin diodes on large freestanding (100) diamond film
- 2023Pseudo-delta phosphorus doped diamond
- 2020Heteroepitaxial growth of sp 2 -hybridized boron nitride multilayer on nickel substrates by CVD: the key role of the substrate orientationcitations
- 2020Production and processing of graphene and related materials
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materials
- 2020Production and processing of graphene and related materialscitations
- 2020Production and processing of graphene and related materialscitations
- 2019Advanced synthesis of highly crystallized hexagonal boron nitride by coupling polymer-derived ceramics and spark plasma sintering processes—influence of the crystallization promoter and sintering temperaturecitations
- 2018Hybrid halide perovskites: a new semiconductor for photovoltaics and light emission
- 2017Angular resolved electron energy loss spectroscopy in hexagonal boron nitride
- 2017Angle-resolved electron energy loss spectroscopy in hexagonal boron nitridecitations
- 2017Surface effects on exciton diffusion in non polar ZnO/ZnMgO heterostructurescitations
- 2014Substitutional phosphorus incorporation in nanocrystalline CVD diamond thin filmscitations
- 2008Correlation Between Microstructure and Optical Properties of ZnO Based Nanostructures Grown by MOCVD
- 2008Stability of B-H and B-D complexes in diamond under electron beam excitationcitations
Places of action
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article
Surface effects on exciton diffusion in non polar ZnO/ZnMgO heterostructures
Abstract
The diffusion of excitons injected in ZnO/Zn 0.92 Mg 0.08 O quantum well heterostructures grown by metal-organic-vapor-phase-epitaxy on non-polar ZnO substrates is investigated at room temperature. Cathodoluminescence linescans in a field-emission-gun scanning-electronmicroscope are performed across cleaved cross-sections. A 55 nm diffusion length is assessed for excitons in bulk ZnMgO. When prepared as small angle bevels using focused ion beam (FIB), the effective diffusion length of excitons is shown to decrease down to 8 nm in the thinner part of the slab. This effect is attributed to non-radiative surface recombinations, with a 7 × 10 4 cm s−1 recombination velocity estimated at the FIB-machined ZnMgO surface. The strong reduction of the diffusion extent in such thin lamellae usually used for transmission electron microscopy could be use improve the spatial resolution of cathodoluminescence images, often limited by diffusion processes.