| 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
Controlling phase separation in thermoelectric Pb1-xGexTe to minimize thermal conductivity
Abstract
Intensive studies have been carried out over the past decade to identify nanostructured thermoelectric materials that allow the efficient conversion of waste heat to electrical power. However, less attention has been paid to the stability of such materials under operating temperatures, typically 400 degrees C or higher. Conventionally nanostructured ceramics tend to undergo grain growth at high temperature, lowering the density of interfaces and raising the thermal conductivity, which is detrimental to device performance. Therefore it is preferable to identify materials with stable nanostructures, for example systems that undergo spontaneous phase separation. Here we investigate PbTe-GeTe alloys, in which spinodal decomposition occurs on initial cooling from above 580 degrees C, forming complex nanostructures consisting of Ge-rich and Pb-rich domains on different size scales. The resulting dense arrangement of interfaces, combined with mass fluctuation associated with Pb-Ge mixing, enhances phonon scattering and strongly reduces the thermal conductivity. Here we focus on the nominal composition Pb0.49Ge0.51Te and show that by tuning the synthesis procedure, we are able to control the pattern of compositional domains and the density of interfaces between them. This allows low lattice thermal conductivities to be maintained even after thermal cycling over the operating temperature range.