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. 2016 Sep 22;6:33868. doi: 10.1038/srep33868

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Copyright © 2016, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Surface FESEM images of (a) Cu/PET, Cu/ITO/PET, and ITO/Cu/ITO/PET with increasing Cu thickness. (b) XPS depth profile of the RTR-sputtered ICI multilayer with Cu thicknesses of 4 and 12 nm.