| 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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Juraszek, Jean
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2023In-depth study of structural, magnetic and XPS behavior of the double perovskite La2-xCex/2Erx/2NiMnO6citations
- 2021Thermopower in the Ba 1−δ M 2+x Ru 4−x O 11 (M = Co, Mn, Fe) magnetic hexagonal ruthenates
- 2021Long-Range Cationic Order Collapse Triggered by S/Cl Mixed-Anion Occupancy Yields Enhanced Thermoelectric Properties in Cu5Sn2S7citations
- 2020Influence of the electronic polymorphism of Ni on the classification and design of high entropy alloyscitations
- 2020Structure and magnetic properties of epitaxial CaFe2O4 thin filmscitations
- 2020Interfacial Strain Gradients Control Nanoscale Domain Morphology in Epitaxial BiFeO 3 Multiferroic Filmscitations
- 2020Origin of the magnetic properties of Fe-implanted 4H-SiC semiconductorcitations
- 2020Non-auxetic/auxetic transitions inducing modifications of the magnetic anisotropy in CoFe2O4 thin filmscitations
- 2020A scalable synthesis route for multiscale defect engineering in the sustainable thermoelectric quaternary sulfide Cu26V2Sn6S32citations
- 2020Interfacial Strain Gradients Control Nanoscale Domain Morphology in Epitaxial BiFeO3 Multiferroic Filmscitations
- 2019Characterization of nanostructure in low dose Fe-implanted p-type 6H-SiC using atom probe tomographycitations
- 2019A magnetic phase diagram for nanoscale epitaxial BiFeO3 filmscitations
- 2019A magnetic phase diagram for nanoscale epitaxial BiFeO3 filmscitations
- 20186H-SiC-Fe Nanostructures Studied by Atom Probe Tomographycitations
- 2014Control of ferroelectricity and magnetism in multi-ferroic BiFeO3 by epitaxial straincitations
- 2013A Mössbauer investigation of the formation of the Ni3Fe phase by high energy ball milling and subsequent annealingcitations
- 2013A Mössbauer investigation of the formation of the Ni3Fe phase by high energy ball milling and subsequent annealingcitations
- 2004CEMS Investigations of Swift Heavy Ion Irradiation Effects in Tb/Fe Multilayerscitations
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article
Long-Range Cationic Order Collapse Triggered by S/Cl Mixed-Anion Occupancy Yields Enhanced Thermoelectric Properties in Cu5Sn2S7
Abstract
In oeder to investigate pathways to adjust the charge carrier concentration and optimize the thermoelectric properties, we characterized structural properties, thermal stability, and thermoelectric performance of pristine and Cl-doped Cu5+ϵSn2-ϵS7. We demonstrate that Cl doping in Cu5Sn2S7-type monoclinic compounds induces a collapse of the long-range cationic ordering, ultimately leading to a sphalerite-type cubic phase characterized by ordered [Sn(S,Cl)4]x clusters. The change in crystal structure symmetry upon Cl doping is analyzed by Rietveld refinements against X-ray powder diffraction data, transmission electron microscopy, Mössbauer and X-ray absorption spectroscopy, and low-and high-temperature transport property measurements. The thermoelectric properties of the so-obtained cubic sphalerite Cu5+ϵSn2-ϵS7-yCly (0 ≤ ϵ ≤ 0.133, y = 0.35, 0.70) are strongly enhanced with respect to the undoped Cu5Sn2S7: the power factor improves slightly while both electronic and lattice contributions to the thermal conductivity are reduced. Overall, single-phase Cl-doped Cu5.133Sn1.866S7-yCly (y = 0.35, 0.70) compounds exhibit high thermoelectric performance, reaching a maximum ZT of 0.45 at 670 K