| 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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Lippmann, Stephanie
Friedrich Schiller University Jena
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Volcanic Eruption in the Nanoworld: Efficient Oxygen Exchange at the Si/SnO<sub>2</sub> Interface
- 2024Thermodynamically Guided Improvement of Fe–Mn–Al–Ni Shape‐Memory Alloyscitations
- 2024Crystalline Microstructure, Microsegregations, and Mechanical Properties of Inconel 718 Alloy Samples Processed in Electromagnetic Levitation Facilitycitations
- 2024Crystalline microstructure, microsegregations and mechanical properties of Inconel 718 alloy samples processed in electromagnetic levitation facilitycitations
- 2023Effect of Co vs. Fe content on early stages of oxidation of Co-Cr-Fe-Mn-Ni-Si complex concentrated alloys at 800 °Ccitations
- 2023Modelling of the Solidifying Microstructure of Inconel 718citations
- 2023Modelling of the Solidifying Microstructure of Inconel 718: Quasi-Binary Approximationcitations
- 2023Microstructure and Early-Stage Oxidation Behavior of Co-Cr-Cu-Fe-Mn-Ni High-Entropy Alloyscitations
- 2023Modelling of the Solidifying Microstructure of Inconel 718:Quasi-Binary Approximationcitations
- 2021Phase Identification in Multi-Phase Cu-Zn/Cu-Al Alloys with Macroscopic Concentration Gradientscitations
- 2020Occurrence and Morphology of Martensite in β-Cu-Zn Alloys with Minor Al Additionscitations
Places of action
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article
Volcanic Eruption in the Nanoworld: Efficient Oxygen Exchange at the Si/SnO<sub>2</sub> Interface
Abstract
<jats:title>Abstract</jats:title><jats:p>Here, a phenomenon of efficient oxygen exchange between a silicon surface and a thin layer of tin dioxide during chemical vapor deposition is presented, which leads to a unique Sn:SiO<jats:sub>2</jats:sub> layer. Under thermodynamic conditions in the temperature range of 725–735 °C, the formation of nanostructures with volcano‐like shapes in “active” and “dormant” states are observed. Extensive characterization techniques, such as electron microscopy, X‐ray diffraction, synchrotron radiation‐based X‐ray photoelectron, and X‐ray absorption near‐edge structure spectroscopy, are applied to study the formation. The mechanism is related to the oxygen retraction between tin(IV) oxide and silicon surface, leading to the thermodynamically unstable tin(II)oxide, which is immediately disproportionate to metallic Sn and SnO<jats:sub>2</jats:sub> localized in the SiO<jats:sub>2</jats:sub> matrix. The diffusion of metallic tin in the amorphous silicon oxide matrix leads to larger agglomerates of nanoparticles, which is similar to the formation of a magma chamber during the natural volcanic processes followed by magma eruption, which here is associated with the formation of depressions on the surface filled with metallic tin particles. This new effect contributes a new approach to the formation of functional composites but also inspires the development of unique Sn:SiO<jats:sub>2</jats:sub> nanostructures for diverse application scenarios, such as thermal energy storage.</jats:p>