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Poster

Comparative study of the picosecond laser surface texturing of YSZ and CGO on YSZ films for electrochemical cells applications

Abstract : The interaction between ultrashort laser beam pulses with thin films induces the formation of surface micro/nanostructures. These laser-induced periodic surface structures (LIPSS), or ripples, could improve the physico-chemical properties of thin films including their specific surface. In the case of electrochemical cells made of an assembly of thin films, they can further improve the performance of the electrode by increasing the specific contact surface by laser structuring of a wide range of materials which is an increasingly powerful technique for species active at the electrode / electrolyte interface. In this work, a picosecond Nd: YAG laser operating at its third harmonic (λ=355 nm) is used to irradiate the surface of gadolinium-doped ceria (CGO) thin films, grown on yttria-stabilized zirconia (YSZ) by magnetron sputtering (Fig.1.a). Furthermore, we have applied the direct texturing of YSZ in order to compare and analyze the specific surface resulting from the two laser structuring approaches (Fig.1.b). The morphological characteristics of the thin films and their structuring were observed by high resolution scanning electron microscopy (HR-SEM) (Fig.2
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Poster
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https://hal.archives-ouvertes.fr/hal-03403560
Contributeur : Nadjib Semmar Connectez-vous pour contacter le contributeur
Soumis le : mercredi 27 octobre 2021 - 11:19:40
Dernière modification le : jeudi 2 décembre 2021 - 17:42:03

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  • HAL Id : hal-03403560, version 1

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W Karim¹, M Mickan¹, A Petit¹, M Tabbal², A Thomann¹, et al.. Comparative study of the picosecond laser surface texturing of YSZ and CGO on YSZ films for electrochemical cells applications. 4th International Conference on Applied Surface Science 2021, Jun 2021, Visioconference, United Kingdom. ⟨hal-03403560⟩

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