Recently, flexible energy generators
with good performance have trigged enormous interest because of their
great potential application in developing full flexible self-powered
electronics. Herein, we reported a flexible high-performance piezoelectric
nanogenerator (PNG) based on composition-gradient multilayered poly(vinylidene
fluoride) (PVDF) nanocomposites wherein a novel three-dimensional
(3D) carbon-based nanoparticle was employed as the nanofiller. Making
use of this novel 3D nanofiller and composition-gradient concept,
one can efficiently promote the interfacial coupling effect and induce
internal strain inside the PVDF matrix, contributing to dramatically
improved piezoelectricity and consequently output performance for
PNG. With the excellent output ability, the PNG also demonstrated
to be capable of operating in both d
33 and d
31 modes and possesses high stability
as well as durability, confirming its applicability as green power
source for full flexible electronic systems.
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