| 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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Harmand, Jean-Christophe
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Selective Area Growth of GaN μ-Platelets on Graphene
- 2023A systematic study of spin-dependent recombination in GaAs1-xNx as a function of nitrogen contentcitations
- 2022Statistics of Nucleation and Growth of Single Monolayers in Nanowires: Towards a Deterministic Regime ; Statistiques de nucléation et croissance des monocouches individuelles dans un nanofil : Vers un régime déterministecitations
- 2019Importance of point defect reactions for the atomic-scale roughness of III-V nanowire sidewallscitations
- 2019Importance of point defect reactions for the atomic-scale roughness of III-V nanowire sidewallscitations
- 2019Importance of point defect reactions for the atomic-scale roughness of III-V nanowire sidewallscitations
- 2019Growth Dynamics of Gallium Nanodroplets Driven by Thermally Activated Surface Diffusioncitations
- 2017Cathodoluminescence mapping for the determination of n-type doping in single GaAs nanowires
- 2017Cathodoluminescence mapping for the determination of n-type doping in single GaAs nanowires
- 2016Photon Cascade from a Single Crystal Phase Nanowire Quantum Dotcitations
Places of action
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article
Growth Dynamics of Gallium Nanodroplets Driven by Thermally Activated Surface Diffusion
Abstract
The growth of catalytic liquid metal nanodroplets on flat substrates is essential for many technological applications. However, the detailed nucleation and growth dynamics of these nanodroplets remains unclear. Here, using in situ Transmission Electron Microscopy (TEM) imaging, we track in real-time the growth of individual Ga nanodroplets from a beam of Ga vapor. We show that the nucleation and growth are driven by thermally-activated surface diffusion of Ga adatoms, with the diffusion activation energy of E_D=95±10 meV on a SiNx surface. More importantly, our analysis shows that Ga-dimers serve as the critical nucleation clusters and that the nanodroplet growth follows a power-law of form R(t)∝〖e^(〖-E〗_D⁄(k_B T)) (t-t_0 )〗^(1⁄2). These insights into the growth dynamics of metallic nanodroplets are essential for tailoring their size and density for their application in self-catalyzed growth of nanomaterials.