Fig. 5: Demonstration of the wind-driven TDNG working on the surface of high temperature object.
From: High performance temperature difference triboelectric nanogenerator
a The optical image of the wind-driven TDNG. b The optical image of a working wind-driven TDNG under the wind. The Al foil is flattened against the thermostat heater serving as a hotter part, and the Kapton flag is swaying in the air serving as a cooler part. c 955 white LEDs are lightened by a wind-driven TDNG under a wind speed of ~8.3 m s−1. d The open-circuit voltage and the short-circuit current of the wind-driven TDNG under different ∆T (wind speed: 5 m s−1). e Charging curves of a capacitor with 22 μF capacitance by wind-driven TDNG under different ∆T (0 K (brown line), 21 K (yellow line), 41 K (green line)). f LEDs are used for temperature difference indicator. g The optical image of a temperature-humidity sensor powered by wind-driven TDNG.
