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. 2020 Jun 17;12:131. doi: 10.1007/s40820-020-00469-3

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© The Author(s) 2020

Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 12 — a Schematic diagram of a PEC-TE hybrid device. Energy band diagrams of b sole PEC and c a PEC-TE hybrid circuit under illumination depicting the influence of qV_TE. Reproduced with permission from Ref. [162]. Copyright 2015 Elsevier Inc., d schematic diagram of the fabricated TENG-TE hybrid energy cell, e schematic diagram of the self-powered system for water splitting to produce H₂, f produced volume of H₂ at different working times. Reproduced with permission from Ref. [164]. Copyright 2013 Royal Society of Chemistry