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. 2020 Mar 27;11:1599. doi: 10.1038/s41467-020-15368-9

Fig. 4. Demonstrations of high output CE-TENG.

Fig. 4

a Current density and b voltage output of CE-TENG under 5 Hz operation frequency. c Directly powering hundreds of LEDs by CE-TENG (scale bar: 10 cm). d Electric scheme of CE-TENG for charging capacitor. e Charging curve of 1 mF and 470 μF capacitor using CE-TENG (frequency: 3 Hz). f CE-TENG for powering thermometer under 5 Hz operation frequency (scale bar: 10 cm). g Long-term stability test of CE-TENG.