| 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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Blake, Graeme R.
University of Groningen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (46/46 displayed)
- 2023Impact of two diammonium cations on the structure and photophysics of layered Sn-based perovskitescitations
- 2023Effects of Intermixing in Sb2Te3/Ge1+xTe Multilayers on the Thermoelectric Power Factorcitations
- 2023Structural Characterization and Thermoelectric Properties of Br-Doped AgSnm[Sb0.8Bi0.2]Te2+m Systemscitations
- 2023Structural Characterization and Thermoelectric Properties of Br-Doped AgSn m [Sb 0.8 Bi 0.2 ]Te 2+m Systemscitations
- 2022Thermoelectric properties of co-doped (Bi0.98In0.02)2Te2.7Se0.3 / reduced graphene oxide composites prepared by solid-state reactioncitations
- 2022Nanostructure and thermal power of highly-textured and single-crystal-like Bi2Te3 thin filmscitations
- 2022Nanostructure and thermal power of highly-textured and single-crystal-like Bi2Te3 thin filmscitations
- 2021Controlling phase separation in thermoelectric Pb1-xGexTe to minimize thermal conductivitycitations
- 2021Structural modulation in potassium birnessite single crystalscitations
- 2020Negative Thermal Quenching in FASnI3 Perovskite Single Crystals and Thin Filmscitations
- 2020Crystal structure and thermal behavior of Bi 6 Te 2 O 15citations
- 2020Structural and multiferroic properties in double-layer Aurivillius phase Pb0.4Bi2.1La0.5Nb1.7Mn0.3O9 prepared by molten salt methodcitations
- 2020Negative thermal quenching in FASnI 3 perovskite single crystals and thin filmscitations
- 2020Stable cesium formamidinium lead halide perovskites: a comparison of photophysics and phase purity in thin films and single crystalscitations
- 2019Stable Cesium Formamidinium Lead Halide Perovskitescitations
- 2019Mechanism of surface passivation of methylammonium lead tribromide single crystals by benzylaminecitations
- 2019Mechanism of surface passivation of methylammonium lead tribromide single crystals by benzylaminecitations
- 2019Enhancing the crystallinity and perfecting the orientation of formamidinium tin iodide for highly efficient Sn-based perovskite solar cellscitations
- 2019Electronic mobility and crystal structures of 2,5-dimethylanilinium triiodide and tin-based organic-inorganic hybrid compoundscitations
- 2019Stable Cesium Formamidinium Lead Halide Perovskites:A Comparison of Photophysics and Phase Purity in Thin Films and Single Crystalscitations
- 2018Micropatterned 2D Hybrid Perovskite Thin Films with Enhanced Photoluminescence Lifetimescitations
- 2018Micropatterned 2D Hybrid Perovskite Thin Films with Enhanced Photoluminescence Lifetimescitations
- 2018Out-of-plane polarization in a layered manganese chloride hybridcitations
- 2017Construction of new 1D and 2D coordination polymers generated from rigid N,N′-bis(4-pyridylmethylene)-1,5-naphthalenediamine ligand:Syntheses, crystal structures and luminescence propertiescitations
- 2017Construction of new 1D and 2D coordination polymers generated from rigid N,N′-bis(4-pyridylmethylene)-1,5-naphthalenediamine ligandcitations
- 2017Thermoelectric Performance of Na-Doped GeSecitations
- 2017Cd(II) coordination polymers based on expanded N,N′-heteroaromatic donor ligandscitations
- 2016Band gap narrowing of Sns2 superstructures with improved hydrogen productioncitations
- 2016Crystallite size dependence of thermoelectric performance of CuCrO2citations
- 2016Confinement Effects in Low-Dimensional Lead Iodide Perovskite Hybridscitations
- 2016Band gap narrowing of SnS2 superstructures with improved hydrogen productioncitations
- 2015Photophysics of Organic-Inorganic Hybrid Lead Iodide Perovskite Single Crystalscitations
- 2015Photophysics of Organic-Inorganic Hybrid Lead Iodide Perovskite Single Crystalscitations
- 2015Effect of Vacancies on Magnetism, Electrical Transport, and Thermoelectric Performance of Marcasite FeSe2-delta (delta=0.05)citations
- 2015Effect of Vacancies on Magnetism, Electrical Transport, and Thermoelectric Performance of Marcasite FeSe2-delta (delta=0.05)citations
- 2014High-Purity Fe3S4 Greigite Microcrystals for Magnetic and Electrochemical Performancecitations
- 2014High-Purity Fe3S4 Greigite Microcrystals for Magnetic and Electrochemical Performancecitations
- 2014Self-Assembly of Ferromagnetic Organic–Inorganic Perovskite-Like Filmscitations
- 2014Self-Assembly of Ferromagnetic Organic–Inorganic Perovskite-Like Filmscitations
- 2012Spin-lattice coupling in iron jarositecitations
- 2009Competition between Jahn-Teller coupling and orbital fluctuations in HoVO3citations
- 2007Experimental evidence for an intermediate phase in the multiferroic YMnO3citations
- 2007Competing orbital ordering in RVO(3) compoundscitations
- 2006Ordering on geometrically frustrating latticescitations
- 2002Structural and magnetic ordering in Pr0.65(CaySr1-y)0.35MnO3citations
- 2001The preparation of a novel layered lead titanate and its conversion to the perovskite lead titanate PbTiO3citations
Places of action
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article
Effects of Intermixing in Sb2Te3/Ge1+xTe Multilayers on the Thermoelectric Power Factor
Abstract
Over the past few decades, telluride-based chalcogenide multilayers, such as PbSeTe/PbTe, Bi2Te3/Sb2Te3, and Bi2Te3/Bi2Se3, were shown to be promising high-performance thermoelectric films. However, the stability of performance in operating environments, in particular, influenced by intermixing of the sublayers, has been studied rarely. In the present work, the nanostructure, thermal stability, and thermoelectric power factor of Sb2Te3/Ge1+xTe multilayers prepared by pulsed laser deposition are investigated by transmission electron microscopy and Seebeck coefficient/electrical conductivity measurements performed during thermal cycling. Highly textured Sb2Te3 films show p-type semiconducting behavior with superior power factor, while Ge1+xTe films exhibit n-type semiconducting behavior. The elemental mappings indicate that the as-deposited multilayers have well-defined layered structures. Upon heating to 210 °C, these layer structures are unstable against intermixing of sublayers; nanostructural changes occur on initial heating, even though the highest temperature is close to the deposition temperature. Furthermore, the diffusion is more extensive at domain boundaries leading to locally inclined structures there. The Sb2Te3 sublayers gradually dissolve into Ge1+xTe. This dissolution depends markedly on the relative Ge1+xTe film thickness. Rather, full dissolution occurs rapidly at 210 °C when the Ge1+xTe sublayer is substantially thicker than that of Sb2Te3, whereas the dissolution is very limited when the Ge1+xTe sublayer is substantially thinner. The resulting variations of the nanostructure influence the Seebeck coefficient and electrical conductivity and thus the power factor in a systematic manner. Our results shed light on a previously unreported correlation of the power factor with the nanostructural evolution of unstable telluride multilayers.