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. 2019 Oct 8;9:14434. doi: 10.1038/s41598-019-50950-2

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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) A V_S,D map and (b) an AFM topography image of a MoS₂ monolayer on the Au stripe array. V_S,L maps of the same region under illumination of (c) TM- and (d) TE-mode linearly polarized light. (e) Measured surface potential data as a function of distance along the dashed lines on the maps. The black, red, and blue lines represent the measured data in the dark, under TM-mode light, and under TE-mode light, respectively. The yellow bars indicate the region on the Au stripe. (f) The measured SPV data at the MoS₂ surface on the Au stripe (indicated by ‘Au’) and the suspended MoS₂ surface (indicated by ‘Suspended’) under illumination with TM (red) and TE (blue) mode light.