Ferroelectric nanofibers and their application in energy harvesting
2019 Copyright All rights reserved. The brittleness of bulk ferroelectric ceramics perplexes the fabrication process for energy harvesters and reduces their durability. As one-dimensional nanostructures, ferroelectric nanofibers possess excellent performance such as decreased elastic coefficient and increased d33 with the decrease of the diameter (Ico et al., 2016; Bai et al., 2012) [1, 2], and can be easily deformed by tiny irregular mechanical vibration, therefore they are extremely useful in the fabrication of energy harvesters. We prepared KNNS-BNKZ nanofibers, BZT-BNT nanofibers, and PZT nanofibers with great ferroelectric performance, and fabricated energy harvesters based on these fibers then discussed the mechanism of energy harvesting, and realized energy collection and storage.