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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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Fischer, Andreas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2022Microstructural and Mechanical Properties of AISI 4140 Steel Processed by Electron Beam Powder Bed Fusion Analyzed Using Miniature Samplescitations
- 2021Transport Properties of Ag‐doped ZnSbcitations
- 2021Evaluation of extremely steep residual stress gradients based on a combined approach using laboratory-scale equipmentcitations
- 2021Synthesis of Silver Modified Bioactive Glassy Materials with Antibacterial Properties via Facile and Low-Temperature Route
- 2020On the structural integrity of Fe-36Ni Invar alloy processed by selective laser melting
- 2020Microstructure and mechanical properties of laser surface treated 44MnSiVS6 microalloyed steelcitations
- 2020Na-Ni-H Phase Formation at High Pressures and High Temperatures: Hydrido Complexes [NiH5](3-) Versus the Perovskite NaNiH3citations
- 2019Additive manufacturing of Co-Ni-Ga high-temperature shape memory alloy - Processability 3 and phase transformation behavior
- 2019In-process roughness quality inspection for metal sheet rolling
- 2019Effect of Hydrogen Addition on Bulk Properties of Sputtered Indium Tin Oxide Thin Filmscitations
- 2018Development of an Ozone-Based Inline Cleaning and Conditioning Conceptcitations
- 2018Combined X-ray diffraction and photothermal radiometry methods for in situ analysis of nitriding treatment
- 2018Geometry Measurement of Submerged Metallic Micro-Parts Using Confocal Fluorescence Microscopy
- 2013New fiber matrix process with 3D fiber printer - a strategic in-process integration of endless fibers using fused deposition modeling (FDM)citations
- 2010The structure and bonding of Y, Eu, U, Am and Cm complexes as studied by quantum chemical methods and X-ray crystallographycitations
- 2004Optimization in aircraft engineering including approximate structural evaluations by support vector machines
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article
Transport Properties of Ag‐doped ZnSb
Abstract
<jats:p>The intermetallic compound ZnSb is a (II‐V) narrow gap semiconductor with interesting thermoelectric properties. Electrical resistivity, Hall coefficient, thermopower and thermal conductivity were measured up to 400 K on Ag‐doped samples with concentrations 0.2, 0.5, 1, 2, and 3 at.%, which were consolidated to densities in excess of 99.5 % by spark plasma sintering. The work confirms a huge improvement of the thermoelectric Figure‐of‐merit, <jats:italic>ZT</jats:italic>, upon Ag doping. The optimum doping level is near 0.5 at.% Ag and results in <jats:italic>ZT</jats:italic> values around 1.05 at 390 K. The improvement stems from a largely decreased resistivity, which in turn relates to an increase of the hole charge carrier concentration by two orders of magnitude. It is argued that Ag can replace minute concentrations of Zn (on the order of 0.2 at.%) in the crystal structure which enhances the intrinsic impurity band of ZnSb. Excess Ag was found to segregate in grain boundaries. So the best performing material may be considered as a composite Zn<jats:sub>~0.998</jats:sub>Ag<jats:sub>~0.002</jats:sub>Sb/Ag<jats:sub>~0.003</jats:sub>.</jats:p>