| 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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Halet, Jean-François
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2023Boron-induced phase transformation of ternary cerium boron silicides
- 2023Investigation of Mn Single and Co-Doping in Thermoelectric CoSb 3 -Skutterudite: A Way Toward a Beneficial Composite Effectcitations
- 2023Enhanced High-Temperature Thermoelectric Performance of Yb 4 Sb 3 via Ce/Bi Co-doping and Metallic Contact Deposition for Device Integrationcitations
- 2023Enhanced NH3 Sensing Performance of Mo Cluster-MoS2 Nanocomposite Thin Films via the Sulfurization of Mo6 Cluster Iodides Precursorcitations
- 2022Improvement of Thermoelectric Properties via Texturation Using a Magnetic Slip Casting Process-The Illustrative Case of CrSi2citations
- 2021Flux synthesis, crystal structure and electronic properties of the layered rare earth metal boride silicide Er<sub>3</sub>Si<sub>5–<i>x</i> </sub>B. An example of a boron/silicon-ordered structure derived from the AlB<sub>2</sub> structure typecitations
- 2021Flux synthesis, crystal structure and electronic properties of the layered rare earth metal boride silicide Er3Si5-xB. An example of a boron/silicon-ordered structure derived from the AlB2 structure typecitations
- 2021Metal-Rich Metallaboranes: Synthesis, Structures and Bonding of Bi- and Trimetallic Open-Faced Cobaltaboranescitations
- 2021Crystal, electronic and magnetic structures of a novel series of intergrowth carbometalates R4Co2C3 (R = Y, Gd, Tb)citations
- 2020Rare-earth Metal Borosilicides R9Si15-xB3 (R = Tb, Yb): New Ordered Structures Derived from the AlB2 Structure Typecitations
- 2020Screening of transition (Y, Zr, Hf, V, Nb, Mo, and Ru) and rare-earth (La and Pr) elements as potential effective dopants for thermoelectric GeTe – an experimental and theoretical appraisalcitations
- 2019Synthesis, Structures and Chemistry of the Metallaboranes of Group 4-9 with M2B5 Core Having a Cross Cluster M-M Bondcitations
- 2019Synthesis, Structures and Chemistry of the Metallaboranes of Group 4–9 with M2B5 Core Having a Cross Cluster M–M Bondcitations
- 2018Impact of Coinage Metal Insertion on the Thermoelectric Properties of GeTe Solid-State Solutionscitations
- 2018Effect of the Processing Route on the Thermoelectric Performance of Nanostructured CuPbSbTecitations
- 2018Detrimental Effects of Doping Al and Ba on the Thermoelectric Performance of GeTecitations
- 2017Sb Doping of Metallic CuCr2S4 as a Route to Highly Improved Thermoelectric Propertiescitations
- 2017Enhancement of the Thermoelectric Properties of FeGa3-type Structures with Group 6 Transition Metals: A Computational Explorationcitations
- 2015Investigations in the ternary praseodymium–boron–carbon system: Solid-state phase diagram and structural chemistrycitations
- 2014Experimental and Theoretical Studies of Quadrupolar Oligothiophene-Cored Chromophores Containing Dimesitylboryl Moieties as π-Accepting End-Groups: Syntheses, Structures, Fluorescence, and One- and Two-Photon Absorptioncitations
- 2012Structural, electronic and magnetic properties of layered REB2C compounds (RE=Dy, Tm, Lu)citations
- 2011New members of ternary rare-earth metal boride carbides containing finite boron-carbon chains: RE25B14C26 (RE=Pr, Nd) and Nd25B12C28citations
- 2008New examples of ternary rare-earth metal boride carbides containing finite boron-carbon chains: The crystal and electronic structure of RE15B6C20 (RE = Pr, Nd)citations
- 2007M2B5 or M2B4? A reinvestigation of the Mo/B and W/B systemcitations
- 2007Chemical bonding in EuTGe (T=Ni, Pd, Pt) and physical properties of EuPdGecitations
- 2006Tin flux synthesis of rare-earth metal silicide compounds RESi1.7 (RE = Dy, Ho): a novel ordered structure derived from the AlB2 typecitations
- 2006The ternary RE-Si-B systems (RE = Dy, Ho, Er and Y) at 1270 K: Solid state phase equilibria and magnetic properties of the solid solution REB2−xSix (RE = Dy and Ho)citations
- 2006Mn5Si3-type host-interstitial boron rare-earth metal silicide compounds RE5Si3: Crystal structures, physical properties and theoretical considerationscitations
- 2006Structural chemistry, magnetism and electrical properties of binary Gd silicides and Ho3Si4citations
Places of action
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article
Effect of the Processing Route on the Thermoelectric Performance of Nanostructured CuPbSbTe
Abstract
The quaternary AgPbSbTe compound (abbreviated as LAST) is a prominent thermoelectric material with good performance. Endotaxially embedded nanoscale Ag-rich precipitates contribute significantly to decreased lattice thermal conductivity (κ) in LAST alloys. In this work, Ag in LAST alloys was completely replaced by the more economically available Cu. Herein, we conscientiously investigated the different routes of synthesizing CuPbSbTe after vacuum-sealed-tube melt processing, including (i) slow cooling of the melt, (ii) quenching and annealing, and consolidation by (iii) spark plasma sintering (SPS) and also (iv) by the state-of-the-art flash SPS. Irrespective of the method of synthesis, the electrical (σ) and thermal (κ) conductivities of the CuPbSbTe samples were akin to those of LAST alloys. Both the flash-SPSed and slow-cooled CuPbSbTe samples with nanoscale dislocations and Cu-rich nanoprecipitates exhibited an ultralow κ ∼ 0.58 W/m·K at 723 K, comparable with that of its Ag counterpart, regardless of the differences in the size of the precipitates, type of precipitate-matrix interfaces, and other nanoscopic architectures. The sample processed by flash SPS manifested higher figure of merit ( zT ∼ 0.9 at 723 K) because of better optimization and a trade-off between the transport properties by decreasing the carrier concentration and κ without degrading the carrier mobility. In spite of their comparable σ and κ, zT of the Cu samples is low compared to that of the Ag samples because of their contrasting thermopower values. First-principles calculations attribute this variation in the Seebeck coefficient to dwindling of the energy gap (from 0.1 to 0.02 eV) between the valence and conduction bands in MPbSbTe (M = Cu or Ag) when Cu replaces Ag.