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. 2018 Sep 19;9:3817. doi: 10.1038/s41467-018-06251-9

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© The Author(s) 2018

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. 5 — Mechanical flexibility. Comparison of the flexibility between PEDOT/Bi₂Te₃(100) hybrid films with ~31 vol% Bi₂Te₃ nanoparticle fraction (red pentacle) and Bi₂Te₃ films (purple circle). a The resistance R of the film as a function of curve radius r, where R₀ is the resistance before bending. b The resistance of the films as a function of bending times with a curve radius of 3.5 mm. Each point shows the standard deviations from three independent measurements. All films were prepared on flexible polyimide substrates