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. 2020 Jul 8;11:3414. doi: 10.1038/s41467-020-17248-8

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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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Fig. 1 — a SEM image, and b AFM image of a representative single Au nanocube (same object). c Nanocube size (edge length) histogram obtained from a set of 100 nanocubes (SEM analysis). d Dark-field scattering image of Au nanocubes on ITO-coated glass substrate. e Dark-field single-nanocube scattering spectrum averaged from 10 nanocubes in air on ITO-coated glass substrate. f Calculated scattering spectrum of a single Au nanocube in air and in polymer (refractive index n = 1.48) on ITO-coated glass substrate (40 nm thickness of ITO layer with refractive index of 2).