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High-speed laser surface texturing by combining direct laser interference patterning with polygon scanner technology

  • In this work, Direct Laser Interference Patterning (DLIP) is used in conjunction with the polygon scanner technique to fabricate textured polystyrene and nickel surfaces through ultra-fast beam deflection. For polystyrene, the impact of scanning speed and repetition rate on the structure formation is studied, obtaining periodic features with a spatial period of 21 μm and reaching structure heights up to 23 μm. By applying scanning speeds of up to 350 m/s, a structuring throughput of 1.1 m²/min has been reached. Additionally, the optical configuration was used to texture nickel electrode foils with line-like patterns with a spatial period of 25 μm and a maximum structure depth of 15 μm. Subsequently, the structured nickel electrodes were assessed in terms of their performance for the Hydrogen Evolution Reaction (HER). The findings revealed a significant improvement in HER efficiency, with a 22% increase compared to the untreated reference electrode.

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Author:Fabian Ränke, Robert Baumann, Bogdan Voisiat, Marcos Soldera, Andrés Fabián Lasagni
Parent Title (German):13. Mittweidaer Lasertagung
Publisher:Hochschule Mittweida
Place of publication:Mittweida
Document Type:Conference Proceeding
Year of Completion:2023
Publishing Institution:Hochschule Mittweida
Contributing Corporation:Institute for Manufacturing Technology, Technische Universität Dresden
Release Date:2023/12/18
Tag:Direct Laser Interference Patterning; Polygon scanner processing; Surface texturing
Page Number:5
First Page:72
Last Page:76
Open Access:Frei zugänglich
Licence (German):License LogoUrheberrechtlich geschützt