The output performance evaluations of multilayered piezoelectric nanogenerators based on the PVDF-HFP/PMN-35PT using various layer-by-layer assembly techniques

Multilayered Poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) and lead magnesium niobate lead titanate Pb (Mg 1/3 Nb 2/3 ) O 3 –PbTiO 3 (PMN-35PT) composition-based piezoelectric nanogenerators (PNGs) were fabricated as series, parallel, and combined series-parallel connections using var...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2024-04, Vol.35 (11), p.796, Article 796
Main Author: Paralı, Levent
Format: Article
Language:English
Subjects:
Aluminum
Assembly
Cellulose
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Fluorides
Fourier transforms
Impedance matching
Internet of Things
Lead titanates
Magnesium niobates
Materials Science
Multilayers
Nanogenerators
Open circuit voltage
Optical and Electronic Materials
Performance evaluation
Performance tests
Piezoelectricity
Polyesters
Polymers
Power efficiency
Sensors
Vinylidene
Vinylidene fluoride
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Summary:Multilayered Poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) and lead magnesium niobate lead titanate Pb (Mg 1/3 Nb 2/3 ) O 3 –PbTiO 3 (PMN-35PT) composition-based piezoelectric nanogenerators (PNGs) were fabricated as series, parallel, and combined series-parallel connections using various layer-by-layer assembly techniques. Supporting the theoretical approaches with experimental results shows that the fabricated four-layered PNG with parallel connections (4L-P) reached an open-circuit voltage of 0.4 V (V RMS ) and a maximum electrical power of 0.3 µW (P RMS ) by drawing a current (I RMS ) of 1.46 µA under a resistive load of 140.2 KΩ. Increasing the capacitance and decreasing the impedance with the fabrication of the four-layer PNG by connecting the layers in parallel connection with the support of the impedance matching process led to an increase in electrical output. With the use of an impedance matching system, the piezoelectric performance tests revealed that the 4L-P-based PNG had a 6.7 times greater electrical power efficiency (72.92 µW) at the vibrational frequency of 20 Hz compared to that of the single-layered PNG (10.82 µW). Furthermore, the multilayer PNG was successfully used as a wearable sensor for the monitoring of human body motions in real time on an IOT (Internet of Things) platform.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-024-12557-w