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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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Vellaisamy, Arul Lenus Roy
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 20242D MXene Interface Engineered Bismuth Telluride Thermoelectric Module with Improved Efficiency for Waste Heat Recoverycitations
- 2023Facile composite engineering to boost thermoelectric power conversion in ZnSb devicecitations
- 20233D Architectural MXene‐based Composite Films for Stealth Terahertz Electromagnetic Interference Shielding Performancecitations
- 2023Dispersion of InSb Nanoinclusions in Cu<sub>3</sub>SbS<sub>4</sub> for Improved Stability and Thermoelectric Efficiencycitations
- 2023Eco-Friendly Cerium–Cobalt Counter-Doped Bi2Se3 Nanoparticulate Semiconductorcitations
- 2022Hierarchically Interlaced 2D Copper Iodide/MXene Composite for High Thermoelectric Performancecitations
- 2022Amorphous carbon nano-inclusions for strategical enhancement of thermoelectric performance in Earth-abundant Cu3SbS4citations
- 2022Probing the Effect of MWCNT Nanoinclusions on the Thermoelectric Performance of Cu3SbS4 Compositescitations
- 2022Thermoelectric properties of sulfide and selenide-based materialscitations
- 2022Insights into the Classification of Nanoinclusions of Composites for Thermoelectric Applicationscitations
- 2021Ultralow Thermal Conductivity in Dual-Doped n-Type Bi2Te3 Material for Enhanced Thermoelectric Propertiescitations
- 2021Current advancements on charge selective contact interfacial layers and electrodes in flexible hybrid perovskite photovoltaicscitations
- 2021Effective decoupling of seebeck coefficient and the electrical conductivity through isovalent substitution of erbium in bismuth selenide thermoelectric materialcitations
- 2019Simultaneous Enhancement of Thermopower and Electrical Conductivity through Isovalent Substitution of Cerium in Bismuth Selenide Thermoelectric Materialscitations
- 2019Efficient oxygen electroreduction kinetics by titanium carbide@nitrogen doped carbon nanocompositecitations
- 2019Influence of nitrogen dopant source on the structural, photoluminescence and electrical properties of ZnO thin films deposited by pulsed spray pyrolysiscitations
- 2007Nanocomposite field effect transistors based on zinc oxide/polymer blendscitations
- 2004Influence of the substrate temperature to the performance of tris (8-hydroxyquinoline) aluminum based organic light emitting diodescitations
Places of action
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article
Ultralow Thermal Conductivity in Dual-Doped n-Type Bi2Te3 Material for Enhanced Thermoelectric Properties
Abstract
Bismuth chalcogenides are promising materials for thermoelectric (TE) application due to their high power factor (product of the square of the Seebeck coefficient and electrical conductivity). However, their high thermal conductivity is an issue of concern. Single doping has proven to be useful in improving TE performance in recent years. Here, it is shown that dual isovalent doping shows the synergistic effect of thermal conductivity reduction and electron density control. The insertion of large atoms in the layered Bi<sub>2</sub>Te<sub>3</sub> structure distorts the crystal lattice and contributes significantly to phonon scattering. The ultralow thermal conductivity (<i>K </i><sub>T</sub> = 0.35 W m<sup>−1</sup> K<sup>−1</sup> at 473 K) compensates for the low power factor and thus enhances TE performance. The density functional theory electronic structure calculation results reveal deep defects states in the valence band, which influences the electronic transport properties of the system. Therefore, the dual dopants (indium and antimony) show a coupled effect of improvement in the density of state near the Fermi level and reduction in the conduction band minimum, thus enhancing electron density. Numerically, it is demonstrated that the dual doping favors acoustic phonon scattering and thus drastically reduces the thermal conductivity.