| 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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article
Polystyrene Thin Films Nanostructuring by UV Femtosecond Laser Beam: From One Spot to Large Surface
Abstract
International audience ; In this work, direct irradiation by a Ti:Sapphire (100 fs) femtosecond laser beam at third harmonic (266 nm), with a moderate repetition rate (50 and 1000 Hz), was used to create regular periodic nanostructures upon polystyrene (PS) thin films. Typical Low Spatial Frequency LIPSSs (LSFLs) were obtained for 50 Hz, as well as for 1 kHz, in cases of one spot zone, and also using a line scanning irradiation. Laser beam fluence, repetition rate, number of pulses (or irradiation time), and scan velocity were optimized to lead to the formation of various periodic nanostructures. It was found that the surface morphology of PS strongly depends on the accumulation of a high number of pulses (103 to 107 pulses) at low energy (1 to 20 µJ/pulse). Additionally, heating the substrate from room temperature up to 97 °C during the laser irradiation modified the ripples’ morphology, particularly their amplitude enhancement from 12 nm (RT) to 20 nm. Scanning electron microscopy and atomic force microscopy were used to image the morphological features of the surface structures. Laser-beam scanning at a chosen speed allowed for the generation of well-resolved ripples on the polymer film and homogeneity over a large area.