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Characterization of the picosecond laser-ablated HOPG using Raman spectroscopy and SEM microscopy
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SYSNO ASEP 0574303 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Characterization of the picosecond laser-ablated HOPG using Raman spectroscopy and SEM microscopy Author(s) Ronoh, K. (CZ)
Sobola, Dinara (UFM-A) ORCID
Mrňa, Libor (UPT-D) RID, ORCID, SAI
Novotný, Jan (UPT-D) ORCID, SAI, RID
Dallaev, R. (CZ)
Knápek, Alexandr (UPT-D) RID, ORCID, SAI
Kolařík, Vladimír (UPT-D) RID, ORCID, SAI
Holcman, V. (CZ)Number of authors 8 Article number 105181 Source Title Materials Today Communications. - : Elsevier - ISSN 2352-4928
Roč. 34, MARCH (2023)Number of pages 11 s. Language eng - English Country NL - Netherlands Keywords Highly oriented pyrolytic graphite ; Laser ablation ; Raman spectroscopy Subject RIV JK - Corrosion ; Surface Treatment of Materials OECD category Coating and films Subject RIV - cooperation Institute of Scientific Instruments - Corrosion ; Surface Treatment of Materials R&D Projects TN01000008 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Research Infrastructure CzechNanoLab - 90110 - Vysoké učení technické v Brně Method of publishing Limited access Institutional support UFM-A - RVO:68081723 ; UPT-D - RVO:68081731 UT WOS 001101851500001 EID SCOPUS 85144499216 DOI 10.1016/j.mtcomm.2022.105181 Annotation Laser-based techniques for the production and modification of HOPG material are highly demanded in the production of functional surface micro/nanostructures required for various applications. A study on laser ablation of the HOPG using picosecond laser under specified laser and scanning parameters in ambient air to generate structured surfaces is reported in this work. The main objective was to establish the effects of laser fluence, scanning speed, hatching spacing, number of scanning passes and the position of the focal plane on the generation of the different types of micro/nanostructures on the HOPG surface after picosecond laser irradiation. The characteristics of the ablated surfaces of the HOPG formed during laser processing have been studied using Raman spectroscopy and scanning electron microscopy (SEM). Analysis of the Raman spectra indicated there are formations of Raman peaks with different sizes and intensities related to structural defects due to laser ablation. The SEM shows the appearances of laser-induced periodic surface structures (LIPSS) and different nano/microstructures after laser ablation depending on different levels of the parameters. The study shows that surface structures formed on the HOPG depend on the interaction of laser and scanning parameters. This work demonstrates that picosecond laser ablation of the HOPG is an important process that could be applied in different application areas such as nano/microstructures synthesis and thin-film deposition. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2024 Electronic address https://www.sciencedirect.com/science/article/pii/S2352492822020220?via%3Dihub
Number of the records: 1