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. 2024 Sep 27;14:22130. doi: 10.1038/s41598-024-69410-7

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Characteristic Raman spectra of exfoliated treated and not treated MoS₂ NSs. (a) Comparison of selected Raman spectra obtained for not irradiated (trace i) and irradiated (trace ii) flakes. (b) Outcomes of the fitting procedure of 2D-MoS₂ bands in the 350–420 cm⁻¹ spectral region. In particular, panel (i) corresponds to the spectrum from untreated flakes, while panel (ii) and (iii) correspond to spectra obtained from irradiated flakes acquired in the inner areas of the flakes (panel ii) and near the border (panel iii). In all the cases, the solid pink lines correspond to the fitted curves, while dashed areas highlight the contribution of the different peaks.