| 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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Semmar, Nadjib
Université d'Orléans
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2024Thin film mediated and direct observation of LIPSS on soda-lime glass by femtosecond IR laser beamcitations
- 2024Nanostructured Oxide (SnO2, FTO) Thin Films for Energy Harvesting: A Significant Increase in Thermoelectric Power at Low Temperaturecitations
- 2024Influence of thin film for LIPSS formation on soda-lime glass using SHG femtosecond laser beam
- 2023Study of CO2 Laser-induced Thermal Stress Mechanisms on Decorative Soda-lime Glasscitations
- 2023Effect of Nanographene Coating on the Seebeck Coefficient of Mesoporous Siliconcitations
- 2022LIPSS formation by picosecond laser irradiation of magnetron sputtered gadolinium-doped ceria thin films
- 2022LIPSS formation by picosecond laser irradiation of magnetron sputtered gadolinium-doped ceria thin films
- 2022Laser texturing of PVD thin-film ceramics for micro-battery applications
- 2022Nano/micro surface structuring of CGO/YSZ oxide thin films by picosecond laser beam
- 2021LIPSS formation by picosecond laser irradiation of magnetron sputtered CGO thin films
- 2021LIPSS formation by picosecond laser irradiation of magnetron sputtered CGO thin films
- 2021Comparative study of the picosecond laser surface texturing of YSZ and CGO on YSZ films for electrochemical cells applications
- 2021Polystyrene Thin Films Nanostructuring by UV Femtosecond Laser Beam: From One Spot to Large Surfacecitations
- 2019Inkjet-printed aluminum-doped zinc oxide nanostructures
- 2018Laser-based setup for simultaneous measurement of the Seebeck coefficient and electrical conductivity for bulk and thin film thermoelectricscitations
- 2018Graphene - mesoporous Si or Ge nanocomposites for thermoelectric applications
- 2017Nanostructuring of titanium oxide thin film by UV femtosecond laser beam: from one spot to large surfacescitations
- 2017Laser sintering of silver-based inkjet printed electrodes
- 2017Growth and properties of calcium cobaltite thin films by pulsed-laser deposition
- 2016Thermoelectric properties of thin film materials : influence of the substrate and contact resistance
- 2015Oxide-based thermoelectric micro-generators for ambiant energy harvesting
- 2015Experimental and numerical analysis of crack-free DPSS laser dicing of borosilicate glasscitations
- 2014Achieving high thermal conductivity from AlN films deposited by high-power impulse magnetron sputteringcitations
- 2014Achieving high thermal conductivity from AlN films deposited by high-power impulse magnetron sputteringcitations
- 2014Titanium oxide thin film growth by magnetron sputtering: Total energy flux and its relationship with the phase constitutioncitations
- 2013Energy transferred to the substrate surface during reactive magnetron sputtering of aluminum in Ar/O2 atmospherecitations
- 2013Plasma-based growth and functionalization of CNT from first steps to technological applications
- 2013IR emission from the target during plasma magnetron sputter depositioncitations
- 2013Energy flux measurements at the substrate deposition during reactive and non-reactive magnetron sputter deposition processes
- 2013Thermal and electrical characterization of thin carbon nanotubes films
- 2012Carbon nanotube growth from metallic nanoparticles deposited by pulsed-laser deposition on different substratescitations
- 2012Molecular dynamics simulations of cluster growth in nanostructured materials
- 2008‘Numerical simulation of Si nanosecond laser annealing by COMSOLMultiphysics : case of IR semi transparent medium
- 2004Laser treatment of a steel surface in ambient aircitations
Places of action
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document
Laser texturing of PVD thin-film ceramics for micro-battery applications
Abstract
In electrochemical cells based on ceramic electrolytes, a thin film of gadolinium-doped cerium oxide (GDC) is deposited between the electrolyte (yttrium-stabilized zirconia, YSZ) and the top electrode to improve resistance to aging. The increase in interface surface area is expected to benefit cell performance. This work investigates the formation of LIPSS (laser-induced periodic surface structures) on the surface of a 600 nm GDC thin film obtained by the magnetron sputtering method on screen-printed YSZ. A picosecond Nd: YAG laser operating at its third harmonic (=355 nm, 40 ps, 10Hz) was used to structure the surface of the GDC/YSZ layer after deposition, using both static and scanning irradiation modes of the laser beam. The various structures formed on the film surface after laser irradiation, mainly quasi-periodic LIPSS, were studied by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Parallel and perpendicular LIPSS were formed simultaneously with periods varying from 220 to 300 nm, depending on beam fluence ranging from 30 to 160 mJ/cm2, and in a spot size of ~500 μm in static mode. The coexistence of the two orientations disappeared at a higher number of shots (N > 20), where only perpendicular structures were formed. Increasing the number of shots up to N> 50 led to a progressive ablation of the film followed by the start of a nano-structuring process of the YSZ substrate. The formation of parallel LIPSS is mainly attributed to the thermochemical process occurring on the GDC/YSZ film at the center of the irradiated zone corresponding to the highest local fluence. The same LIPSS orientations were found in scan mode by varying laser fluence and displacement stage parameters. For the latter mode, the effect of laser irradiation on the elemental composition of the films was studied by energy dispersive X-ray spectroscopy (EDX) and Rutherford backscattering (RBS) to verify the chemical stability of the film in the soft ablation process by accumulation effect. Finally, surface enhancement by LIPSS formation was estimated using atomic force microscopy (AFM) and a geometric surface enhancement coefficient that gave "theoretical" maximum values of 57% and 78% for 1D periodic structures (regular LIPSS) and 2D others respectively.