| 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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Verbeeck, Johan
Hasselt University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2024Enhanced Piezoelectricity by Polarization Rotation through Thermal Strain Manipulation in PbZr<sub>0.6</sub>Ti<sub>0.4</sub>O<sub>3</sub> Thin Films
- 2024Investigation of the Octahedral Network Structure in Formamidinium Lead Bromide Nanocrystals by Low-Dose Scanning Transmission Electron Microscopycitations
- 2024Investigation of the octahedral network structure in formamidinium lead bromide nanocrystals by low-dose scanning transmission electron microscopycitations
- 2024Tailoring Mechanical Properties and Shear Band Propagation in ZrCu Metallic Glass Nanolaminates Through Chemical Heterogeneities and Interface Densitycitations
- 2024Tailoring Mechanical Properties and Shear Band Propagation in ZrCu Metallic Glass Nanolaminates Through Chemical Heterogeneities and Interface Densitycitations
- 2024The effect of microstructure and film composition on the mechanical properties of linear antenna CVD diamond thin filmscitations
- 2024Unveiling the 3D Morphology of Epitaxial GaAs/AlGaAs Quantum Dots
- 2024Photoluminescence of Germanium-Vacancy Centers in Nanocrystalline Diamond Films: Implications for Quantum Sensing Applicationscitations
- 2024Imaging the suppression of ferromagnetism in LaMnO3 by metallic overlayerscitations
- 2024Photoluminescence of Germanium-Vacancy Centers in Nanocrystalline Diamond Films:Implications for Quantum Sensing Applicationscitations
- 2023Insights into the Photoelectrocatalytic Behavior of gCN-Based Anode Materials Supported on Ni Foamscitations
- 2023Deep learning for automated materials characterisation in core-loss electron energy loss spectroscopycitations
- 2023Statistical recommendations for count, binary, and ordinal data in rare disease cross-over trialscitations
- 2022Self-Assembled Epitaxial Cathode-Electrolyte Nanocomposites for 3D Microbatteriescitations
- 2022On the formation mechanisms of intragranular shear bands in olivine by stress-induced amorphizationcitations
- 2022On the formation mechanisms of intragranular shear bands in olivine by stress-induced amorphizationcitations
- 2022Deeper insights into the photoluminescence properties and (photo)chemical reactivity of cadmium red (CdS1−xSex) paints in renowned twentieth century paintings by state-of-the-art investigations at multiple length scalescitations
- 2022The Role of SnF2 Additive on Interface Formation in All Lead-Free FASnI(3) Perovskite Solar Cellscitations
- 2021Novel class of nanostructured metallic glass films with superior and tunable mechanical propertiescitations
- 2019Diluted Oxide Interfaces with Tunable Ground Statescitations
- 2019Spectroscopic coincidence experiments in transmission electron microscopycitations
- 2018Measurement of the indirect band gap of diamond with EELS in STEM
- 2018Nanostructured nitrogen doped diamond for the detection of toxic metal ions
- 2018Nanostructured nitrogen doped diamond for the detection of toxic metal ions
- 2017On the Origin of Diamond Plates Deposited at Low Temperaturecitations
- 2017Vertically aligned diamond-graphite hybrid nanorod arrays with superior field electron emission propertiescitations
- 2015Homogeneity and composition of AlInGaN: A multiprobe nanostructure studycitations
- 2014Substitutional phosphorus incorporation in nanocrystalline CVD diamond thin filmscitations
- 2011Theoretical Investigation of Grain Size Tuning during Prolonged Bias-Enhanced Nucleationcitations
Places of action
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article
Unveiling the 3D Morphology of Epitaxial GaAs/AlGaAs Quantum Dots
Abstract
Strain-free GaAs/AlGaAs semiconductor quantum dots (QDs) grown by droplet etching and nanohole infilling (DENI) are highly promising candidates for the on-demand generation of indistinguishable and entangled photon sources. The spectroscopic fingerprint and quantum optical properties of QDs are significantly influenced by their morphology. The effects of nanohole geometry and infilled material on the exciton binding energies and fine structure splitting are well understood. However, a comprehensive understanding of GaAs/AlGaAs QD morphology remains elusive. To address this, we employ high-resolution scanning transmission electron microscopy (STEM) and reverse engineering through selective chemical etching and atomic force microscopy (AFM). Cross-sectional STEM of uncapped QDs reveals an inverted conical nanohole with Al-rich sidewalls and defect-free interfaces. Subsequent selective chemical etching and AFM measurements further reveal asymmetries in element distribution. This study enhances the understanding of DENI QD morphology and provides a fundamental three-dimensional structural model for simulating and optimizing their optoelectronic properties.