Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10135944 | Nano Energy | 2018 | 18 Pages |
Abstract
Effective polarization of ferroelectric materials can be achieved by utilizing a conventional high-voltage polarization equipment with a high voltage but a large volume. Here, we report that the polarization of a ferroelectric BaTiO3 material can be realized by using a triboelectric nanogenerator (TENG) to scavenge ambient wind energy, where the TENG is ideal for providing a higher voltage, a smaller current, and especially a smaller volume. Both the output voltage and current signals of TENG can be adjustable by controlling different wind speeds, where the TENG can deliver an output voltage pulse (<10â¯ms in period) of about 1000â¯V and an output current pulse of smaller than 100â¯ÂµA under a wind speed of about 14â¯m/s. A piezoelectric constant of larger than 150â¯pC/N and a pyroelectric constant of larger than 14â¯nC/cm2 K were achieved by using a TENG to polarize the ferroelectric BaTiO3 material. A handheld TENG can be also utilized to polarize the ferroelectric material, demonstrating the possibility of obtaining small-scale high-voltage polarization equipments.285
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Physical Sciences and Engineering
Energy
Energy (General)
Authors
Xi Liu, Kun Zhao, Ya Yang,