Journal
COMPOSITES PART B-ENGINEERING
Volume 178, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2019.107447
Keywords
Polymer-matrix composites (PMCs); Fibres; Smart materials; Electrical properties; Wearable nanogenerator
Funding
- National Key R&D Program of China [2018YFC1105304]
- National Basic Research Program of China (973-Program) [2015CB654603]
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Polymer-based piezoelectric nanocomposites are much promising in self-powered wearable application. In this work, flexible MWCNTs/P(VDF-TrFE) fibrous membranes were prepared via electrospinning. The introduction of coaxially aligned MWCNTs improves the mechanical-to-electrical output of 18.23 V and 2.14 mu A of peak values in 3 wt% loading piezoelectric nanogenerator (PENG). An output power density of 6.53 mu W/cm(2) was obtained at 10 M Omega load resistance under the test condition close to practical use of 20% strain and 1 Hz external stress. In application test, tiny movement on the device could instantly light LED bulbs or LCD screen. The PENG also represents high stability during more than 20,000 cycles.
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