Highly Semiconducting One-Dimensional Porous ZnO Nanorod Array Nanogenerators for Mechanical Energy Harvesting Functions

Figure 6

(a) Schematic illustration of the M: ZnO NR-based TENGs. (b) Photographic image of the output voltage generated from M: ZnO NR TENG during the external pushing force. (c) The output voltage and (d) current density of smooth ZnO NRs and M: ZnO NRs.

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(b)

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