Fig. 5
From: Omni-directional wind-driven triboelectric nanogenerator with cross-shaped dielectric film
a The change of Voc of the CIA-TENG at a wind speed of 9 m s− 1 for 500,000 fluttering cycles. b A schematic circuit diagram for powering 25 LEDs and c, d the triboelectric performances of the CIA-TENG with a bridge rectifier in series. e Snapshot of the lit “LED” characters composed of 25 LEDs, powering by the CIA-TENG