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. 2019 Sep 4;11:71. doi: 10.1007/s40820-019-0302-0

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© The Author(s) 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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.

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Fig. 21 — High-performance sensing devices by combining a FET with a triboelectric nanogenerator. a Schematic diagram of the graphene tribotronic device. b Characterization of the graphene tribotronic touch sensor. Reproduced with permission from Ref. [146]. Copyright 2016 WILEY–VCH Verlag GmbH & Co. KGaA, Weinheim. c Energy band diagram of the tribotronic GFET device in contact with poly(tetrafluoroethylene) and Cu. Reproduced with permission from Ref. [145]. Copyright 2018 American Chemical Society