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Polydimethylsiloxane as protecting layer to improve the quality of patterns on graphene oxide
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SYSNO ASEP 0563456 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Polydimethylsiloxane as protecting layer to improve the quality of patterns on graphene oxide Author(s) Cutroneo, Mariapompea (UJF-V) ORCID, RID, SAI
Havránek, Vladimír (UJF-V) RID, SAI, ORCID
Torrisi, L. (IT)
Macková, Anna (UJF-V) RID, ORCID, SAI
Malinský, Petr (UJF-V) RID, ORCID, SAI
Fazio, B. (IT)
Slepička, P. (CZ)
Fajstavr, D. (CZ)
Silipigni, L. (IT)Number of authors 9 Article number 111353 Source Title Vacuum. - : Elsevier - ISSN 0042-207X
Roč. 204, OCT (2022)Number of pages 11 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords graphene oxide ; Polydimethylsiloxane ; ion lithography ; deoxgenation ; structural modification OECD category Coating and films R&D Projects EF16_013/0001812 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA22-10536S GA ČR - Czech Science Foundation (CSF) Research Infrastructure CANAM II - 90056 - Ústav jaderné fyziky AV ČR, v. v. i. Method of publishing Limited access Institutional support UJF-V - RVO:61389005 UT WOS 000868576800001 EID SCOPUS 85135530868 DOI 10.1016/j.vacuum.2022.111353 Annotation Graphene oxide (GO) foils have been covered with poly(dimethylsiloxane) (PDMS) via spin coating and then heated in oven to strengthen the bond of the polymerized composite. Micro ion beam has been used to directly pattern the realized film and to promote the localized reduction in the ion irradiated GO areas in vacuum. The lessening of the disorder in the carbon crystal structure and the defects production are demanding in all the graphene-based materials applications. Micro beams of 5 MeV C3+ ions with a spot of 1.5 mu m x 10 mu m (focused beam) and unfocused beams with size of 3 x 3 mm(2) have been employed to irradiate the produced composites on a small localized region and wide areas respectively. The poly(dimethylsiloxane) foil, used to cover GO, confers flexibility to the created patterns and allows the oxygen degassing from GO. The quality and the fidelity of the patterns have been investigated by Atomic Force Microscopy (AFM). The ion beam induced structural changes in the coated and uncoated graphene oxide foils have been studied by Raman spectroscopy confirming that PDMS can be used as protecting layer to improve the quality of patterns obtained on graphene oxide by the 5.0 MeV C3+ ions beam writing. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2023 Electronic address https://doi.org/10.1016/j.vacuum.2022.111353
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