Abstract
In this paper, we have demonstrated 3D branched ZnO nanotrees (ZNTs) on flexible ITO–PET substrates by a facile two-step hydrothermal approach. The characterization of the as-grown ZNTs was studied by using SEM and XRD. Furthermore, self-powered piezoelectric nanogenerators (NGs) based on these ZNTs were fabricated. It is proved that the ZNT structures could significantly enhance the output current to ~300 nA, much higher than that of the previously reported NWs-based NGs, and their application toward energy harvesting devices is promising for the miniaturization of a power package and wearable devices.
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Acknowledgments
This work was supported by the NSFC (Project No. 61504018), the Doctoral Scientific Research Foundation of Liaoning Province (Project No. 201501193), General Project of Scientific Research of the Education Department of Liaoning Province (L2015040), Foundation of Key laboratory for Micro/Nano Technology and System of Liaoning and Province (20140405), the Fundamental Research Funds for the Central Universities (DUT15LAB15).
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Yang, D., Qiu, Y., Wang, T. et al. Growth of 3D branched ZnO nanowire for DC-type piezoelectric nanogenerators. J Mater Sci: Mater Electron 27, 6708–6712 (2016). https://doi.org/10.1007/s10854-016-4619-x
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DOI: https://doi.org/10.1007/s10854-016-4619-x