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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
Places of action
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article
A scalable synthesis route for multiscale defect engineering in the sustainable thermoelectric quaternary sulfide Cu26V2Sn6S32
Abstract
International audience ; In recent years, thermoelectric materials inspired from the natural mineral colusite have emerged as a new class of environmentally-friendly copper-based sulfides composed of abundant elements. Herein, high performance bulk colusite Cu26V2Sn6S32 materials were synthesized using mechanical alloying and spark plasma sintering of low-cost industrial-grade metal sulfides. This new synthesis route has led to the formation of various types of nano-to-microscale defects, from local Sn-site structural disorder to nano-inclusions and vanadium-rich core-shell microstructures. These multiscale defects have a strong impact over phonon scattering, making it possible to reach ultra-low lattice thermal conductivity. Simultaneously, the electrical transport properties are impacted through variations in charge carrier concentration and effective mass, leading to a synergistical improvement of both electrical and thermal properties. The resulting power factor, over 1 mW m−1 K−2 above 623 K with an average value of 0.86 mW m−1 K−2 over the temperature range 300 ≤ T / K ≤ 650 K, is the highest reported for a germanium-free colusite to date. Our optimization strategy based on defect engineering in bulk materials is an exciting prospect for new low-cost thermoelectric systems.