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. 2017 Sep 20;7:12009. doi: 10.1038/s41598-017-12243-4

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© The Author(s) 2017

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) Optical images (10x) of Graphene flakes deposited on conductive glass for different amounts of colloidal solution (white glass on the left and on the right a zoom of the deposited films). (B) AFM images in the region of best coverage (the limit of the AFM measurements is a window of 100 × 100 µm) and (C) optical transmission for films obtained with different colloidal amounts.