Picosecond laser beam nanostructuring of GDC thin films: exchange surface enhancement by LIPSS

Karim, Wael; Petit, Agnès; Rabat, Hervé; Tabbal, M.; Thomann, Anne-Lise; Semmar, Nadjib

doi:10.1007/s00339-022-05866-6

Cited by 3 publications

(4 citation statements)

References 42 publications

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“…3.a), the sample's surface shows regularly arranged YSZ square shaped patterns or nano-squares (NS). These patterns are similar to the YSZ nano-squares observed at comparable laser doses reported in our previous work, where it was shown that this results from a complete ablation of the GDC film, as confirmed by Electron Dispersion X-Ray (EDX) analyses [32]. These nanosquares are observed across the entire laser beam impact.…”

Section: Thin Film-mediated Structuring Of Yszsupporting

confidence: 88%

“…On the other hand, the formation of new structures like Nano-squares (NS) on YSZ by means of GDC thin film, can significantly increase the specific surface based on the geometrical model mentioned in our previous article cited in ref. 32.…”

Section: Discussionmentioning

confidence: 99%

“…On the other hand, the Au thin films have a thickness of ~20 nm and were deposited on YSZ by plasma sputtering from a 2-inch gold target at a pressure of 0.5 Pa with 20 sccm Ar as sputtering gas. All irradiation experiments were performed using a picosecond Nd: YAG laser operating at its third harmonic (λ = 355 nm) with a pulse duration of 40 ps and a repetition rate of 10 Hz [32],. The energy/pulse is modulated using an optical filter energy (Thorlabs UGC), and the laser Gaussian beam is focused to a 550 µm diameter spot on the sample's surface using a quartz lens with a focal length of 75 mm.…”

Section: Methodsmentioning

confidence: 99%

“…In the context of SOEC optimization, we previously investigated the laser texturing of a Gadolinium Doped Ceria (GDC) thin layer on the YSZ to enhance electrode surface area [32]. The GDC layer was introduced as a diffusion barrier layer to inhibit the formation of undesired oxide phases that may be detrimental to the cell's performance [33] In that work [32], a UV picosecond beam was utilized and LIPSS pattern on GDC were formed depending on laser dose (defined as the laser fluence times the number of pulses, FxN). It was also reported that, at high laser doses, ablation of the entire GDC film can take place leaving a textured YSZ substrate, in the form of nano-squared structures.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Nano-Squares and Regular Lipss on Ysz Coating by Picosecond Uv Laser Beam: Thin Film Mediated and Direct Texturing

Karim

Petit

Millon

et al. 2023

Preprint

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Section: Thin Film-mediated Structuring Of Yszsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nano-Squares and Regular Lipss on Ysz Coating by Picosecond Uv Laser Beam: Thin Film Mediated and Direct Texturing

Karim

Petit

Millon

et al. 2023

Preprint

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Formation of decorated LIPSS on GaN thin film by UV picosecond laser beam in air and under vacuum

Labbe,

Aspe,

Stolz

et al. 2024

Appl. Phys. A

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Influence of thin film for LIPSS formation on soda-lime glass using SHG femtosecond laser beam

Arun Kumar,

Aspe,

Depardieu

et al. 2024

AIP Advances

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This investigation focuses on the influence of thin films on laser-induced periodic surface structures (TF-LIPSSs) formed on soda-lime glass using femtosecond laser pulses with a wavelength of 515 nm. In this study, we introduce a new framework involving a combined metal thin film of chromium and silver (Cr:30 nm + Ag:100 nm) deposited onto soda-lime glass by DC magnetron sputtering. Due to their better coupling by heat accumulation, metal thin film enables a more efficient transfer of energy to the dielectric glass substrate, leading to the formation of periodic structures. The thin-metal-film-deposited glass substrate is irradiated with the second-harmonic generator of a Satsuma laser source to create the LIPSS at high repetition rates ranging from 10 to 250 kHz. We observe simultaneously low-spatial-frequency LIPSS (LSFL) with a spatial period (Λ) of 400 nm and high-spatial-frequency LIPSS (HSFL) with a spatial period of about 110 nm on thin film and glass substrate, respectively. Interestingly, at 10 μJ and 100 kHz, the HSFL observed on the glass substrate are significantly smaller than half of the irradiation wavelength. In the center region, the HSFL⊥ are perpendicular to the laser beam polarization. In the transitioned region between the impact center and the melted area, the HSFLII are parallel to the polarization. Furthermore, when the energy was increased from 10 to 15 μJ, the irradiated zone geometry changed from a regular circular shape to an elliptical one due to an uneven energy distribution over the ablated area, resulting in the formation of irregular surface structures. Finally, a comparative analysis of surface modifications on a metal thin-film-coated glass substrate using different repetition rates and energy levels revealed dissimilar morphological structures.

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Picosecond laser beam nanostructuring of GDC thin films: exchange surface enhancement by LIPSS

Cited by 3 publications

References 42 publications

Nano-Squares and Regular Lipss on Ysz Coating by Picosecond Uv Laser Beam: Thin Film Mediated and Direct Texturing

Nano-Squares and Regular Lipss on Ysz Coating by Picosecond Uv Laser Beam: Thin Film Mediated and Direct Texturing

Formation of decorated LIPSS on GaN thin film by UV picosecond laser beam in air and under vacuum

Influence of thin film for LIPSS formation on soda-lime glass using SHG femtosecond laser beam

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