Fully Enclosed
Cylindrical Single-Electrode-Based Triboelectric Nanogenerator
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Abstract
We report a fully enclosed cylindrical
single-electrode-based triboelectric nanogenerator (S-TENG) consisting
of a perfluoroalkoxy (PFA) ball with surface-etched nanowires, a floating
latex balloon, and an Al electrode at the end of the balloon. The
mechanism of the S-TENG includes two independent processes: contact-induced
electrification between the PFA ball and the balloon and electrostatic
induction between the charged PFA ball and the Al electrode. The relationships
between the electrical outputs and the sliding distance of the PFA
ball were systematically investigated by combining experimental results
with finite-element calculations. The S-TENG delivers an output voltage
up to 236 V and a short-circuit current of 4.8 μA, which can
be used as a direct power source for driving tens of green light-emitting
diodes (LEDs). The S-TENG is a potential power source for gas-flow
harvesters, air navigation, and environmental monitoring