| 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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Kar-Narayan, Sohini
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Advanced Materials for Energy Harvesting and Soft Robotics: Emerging Frontiers to Enhance Piezoelectric Performance and Functionality.
- 2023Precursor-Led Grain Boundary Engineering for Superior Thermoelectric Performance in Niobium Strontium Titanate.
- 2023Precursor-Led Grain Boundary Engineering for Superior Thermoelectric Performance in Niobium Strontium Titanatecitations
- 2021Route to High-Performance Micro-solid Oxide Fuel Cells on Metallic Substrates.
- 2020Unprecedented Dipole Alignment in α-phase Nylon-11 Nanowires for High Performance Energy Harvesting Applications
- 2020Time-resolved open-circuit conductive atomic force microscopy for direct electromechanical characterisation.
- 2020Time-resolved open-circuit conductive atomic force microscopy for direct electromechanical characterisationcitations
- 2020Enhanced Piezoelectricity of Electrospun Polyvinylidene Fluoride Fibers for Energy Harvesting.
- 2019Highly sensitive piezotronic pressure sensors based on undoped GaAs nanowire ensemblescitations
- 2019Modified energy harvesting figures of merit for stress- and strain-driven piezoelectric systemscitations
- 2019Au - Ge Alloys for Wide-Range Low-Temperature On-Chip Thermometry
- 2018The effect of crystal structure on the electromechanical properties of piezoelectric Nylon-11 nanowires.
- 2018Fully Printed Organic-Inorganic Nanocomposites for Flexible Thermoelectric Applications.
- 2016Template-Assisted Hydrothermal Growth of Aligned Zinc Oxide Nanowires for Piezoelectric Energy Harvesting Applications.
- 2016Vertically aligned zinc oxide nanowires electrodeposited within porous polycarbonate templates for vibrational energy harvesting.
- 2015Energy harvesting performance of piezoelectric ceramic and polymer nanowires.
Places of action
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article
Precursor-Led Grain Boundary Engineering for Superior Thermoelectric Performance in Niobium Strontium Titanate
Abstract
We present a novel method to significantly enhance the thermoelectric performance of ceramics in the model system SrTi0.85Nb0.15O3 through the use of the precursor ammonium tetrathiomolybdate (0.5–2% w/w additions). After sintering the precursor-infused green body at 1700 K for 24 h in 5% H2/Ar, single-crystal-like electron transport behavior developed with electrical conductivity reaching ∼3000 S/cm at ∼300 K, almost a magnitude higher than that in the control sample. During processing, the precursor transformed into MoS2, then into MoOx, and finally into Mo particles. This limited grain growth promoted secondary phase generation but importantly helped to reduce the grain boundary barriers. Samples prepared with additions of the precursor exhibited vastly increased electrical conductivity, without significant impact on Seebeck coefficients giving rise to high power factor values of 1760 μW/mK2 at ∼300 K and a maximum thermoelectric figure-of-merit zT of 0.24 at 823 K. This processing strategy provides a simple method to achieve high charge mobility in polycrystalline titanate and related materials and with the potential to create “phonon-glass-electron-crystal” oxide thermoelectric materials.