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Fig. 3 | Nanoscale Research Letters

Fig. 3

From: Electrospun Polytetrafluoroethylene Nanofibrous Membrane for High-Performance Self-Powered Sensors

Fig. 3

a Digital photograph of the NG device and b a schematic illustration of its structure. c Output current of two individual NG devices (G1 and G2) and a parallel connection of them (G1 + G2). d Output of the NG with different stimulation forces at 5 Hz. e Output of the NG at different frequencies with a stimulation force of 5 N. f Output of the NG with different loading resistance. g Cycling stability of the NG

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