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. 2020 Feb 7;10:2151. doi: 10.1038/s41598-020-58965-w

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© The Author(s) 2020

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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Gas sensing response, (a) For PVDF, rGO/PVDF, SnO₂/PVDF, and rGO/SnO₂/PVDF nanocomposite thick film towards different hydrogen gas concentration, (b) Response curve and the fitting analysis of the response of the 0.90(PVDF) − 0.10[0.75(SnO₂) − 0.25 rGO] nanocomposite sensor for different H₂ gas concentration, and (c) Sensing performance of the proposed nanocomposite sensor towards 100 PPM H₂ exposure under different humidity conditions.