Premium
Ultra‐Stable Electret Nanogenerator to Scavenge High‐Speed Rotational Energy for Self‐Powered Electronics
Author(s) -
Zhao Kun,
Wang Xue,
Yang Ya
Publication year - 2017
Publication title -
advanced materials technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.184
H-Index - 42
ISSN - 2365-709X
DOI - 10.1002/admt.201600233
Subject(s) - electret , electronics , voltage , nanogenerator , materials science , electrical engineering , energy harvesting , power (physics) , rotational speed , optoelectronics , mechanical engineering , physics , engineering , composite material , quantum mechanics
An electret nanogenerator (ENG) based on electrostatic induction of an electret film is realized exhibiting an ultra‐stable output performance. No output voltage/current decay is found under continuous working conditions of 10 h or intermittent working conditions of 100 days at a rotational speed of 4000 rpm. By utilizing a power management circuit, the ENG can deliver a constant output voltage of 5 V and a pulsed output current of 160 mA, which can provide enough energy for directly powering some small electronics such as a temperature–humidity sensor.