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Fig.4 | Nanoscale Research Letters

Fig.4

From: Highly Stretchable All-Rubber-Based Thread-Shaped Wearable Electronics for Human Motion Energy-Harvesting and Self-Powered Biomechanical Tracking

Fig.4

a The schematic illustration of the SPST-cotton tapping. b The electricity generation mechanism with SPST-cotton tapping. c The open-circuit voltages and d short-circuit currents with SPST-cotton tapping at different tapping frequencies. e Measured voltage curves of various capacitors at frequency of 3 Hz and force of 100 N. f The LEDs and electric watch were driven by the SPST-cotton device

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