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. 2019 Feb 7;9:1641. doi: 10.1038/s41598-018-37219-w

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© The Author(s) 2019

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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(a) Plane-view and (b) cross-sectional HRTEM images of vertically-aligned 2D MoS₂ layers grown on SiO₂. 2D MoS₂ layers are rooted in the SiO₂ surface (red highlight in (b)). (c) Cross-sectional HRTEM image of horizontally-aligned 2D MoS₂ layers grown on SiO₂. 2D basal planes are in contact with the SiO₂ surface. The inset shows a low magnification TEM image of the corresponding sample.