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| Naji, M. |
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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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| 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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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ali, M. A. |
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| Rančić, M. |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Saianand, Gopalan
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Publications (7/7 displayed)
- 2022Probing the Effect of MWCNT Nanoinclusions on the Thermoelectric Performance of Cu3SbS4 Compositescitations
- 2021Current advancements on charge selective contact interfacial layers and electrodes in flexible hybrid perovskite photovoltaicscitations
- 2021Tin oxide for optoelectronic, photovoltaic and energy storage devices: a reviewcitations
- 2021Tin oxide for optoelectronic, photovoltaic and energy storage devices: a reviewcitations
- 2021Effective decoupling of seebeck coefficient and the electrical conductivity through isovalent substitution of erbium in bismuth selenide thermoelectric materialcitations
- 2021Effective decoupling of seebeck coefficient and the electrical conductivity through isovalent substitution of erbium in bismuth selenide thermoelectric materialcitations
- 2020A comparative evaluation of physicochemical properties and photocatalytic efficiencies of cerium oxide and copper oxide nanofluidscitations
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article
Probing the Effect of MWCNT Nanoinclusions on the Thermoelectric Performance of Cu3SbS4 Composites
Abstract
Recently, copper-based chalcogenides, especially sulfides, have attracted considerable attention due to their inexpensive, earth-abundance, nontoxicity, and good thermoelectric performance. Cu<sub style="background-color: rgb(255, 255, 255);">3</sub>SbS<sub style="background-color: rgb(255, 255, 255);">4</sub> is one such kind with p-type conductivity and high phase stability for potential medium-temperature applications. In this article, the effect of a multiwalled carbon nanotube (MWCNT) on the thermoelectric parameters of Cu<sub style="background-color: rgb(255, 255, 255);">3</sub>SbS<sub style="background-color: rgb(255, 255, 255);">4</sub> is studied. A facile synthesis route of mechanical alloying (MA), followed by hot pressing (HP) was utilized to achieve dense and fine-grain samples. Adding the optimal amount of MWCNT nanoinclusions in Cu<sub style="background-color: rgb(255, 255, 255);">3</sub>SbS<sub style="background-color: rgb(255, 255, 255);">4</sub> enhanced the Seebeck coefficient by carrier energy filtering and reduced the thermal conductivity by strong phonon scattering mechanisms. This synergistic optimization helped achieve the maximum figure of merit (<i>ZT</i>) of 0.43 in the 3 mol % MWCNT nanoinclusion composite sample, which is 70% higher than the pristine Cu<sub style="background-color: rgb(255, 255, 255);">3</sub>SbS<sub style="background-color: rgb(255, 255, 255);">4</sub> at 623 K. In addition, enhancement in mechanical stability is observed with the increasing nanoinclusion concentration. Dispersion strengthening and grain boundary hardening mechanisms help improve mechanical stability in the nanocomposite samples. Apart from the enhanced mechanical stability, our study highlights that the incorporation of multiwalled CNT nanoinclusions boosted the thermoelectric performance of Cu<sub style="background-color: rgb(255, 255, 255);">3</sub>SbS<sub style="background-color: rgb(255, 255, 255);">4</sub>, and the same strategy can be extended to other next-generation and conventional thermoelectric materials.