Issue 8, 2023

Enhanced triboelectric properties of Eu2O3-doped BaTiO3/PVDF-HFP nanofibers

Abstract

Because triboelectric nanogenerators (TENGs) convert mechanical energy into electricity, they are sustainable energy sources for powering a diverse range of intelligent sensing and monitoring devices. To enhance the electrical output of polymer-based TENGs, nanofillers are commonly incorporated into polymers. In this study, we developed a simple low-temperature process for preparing high-performance ceramic powder-based TENGs comprising electrospun fibrous surfaces based on poly(vinylidene difluoride-co-hexafluoropropylene) (PVDF-HFP) and dispersed Eu2O3-doped BaTiO3 nanofillers. Herein, we discuss the effect of the modified dielectric properties and transferred charge of the electrification film on the performance of the TENGs. After incorporating the Eu2O3-doped BaTiO3 nanofiller, the maximum output voltage of the 10 wt% Eu2O3–BaTiO3/PVDF-HFP electrospun-nanofiber TENG reached as high as 1004 V with a corresponding current density of 9.9 μA cm−2. The enhancement in the triboelectric properties of the Eu2O3–BaTiO3/PVDF-HFP electrospun-nanofiber TENGs was due to their high amounts of interface polarization and transferred charge, suggesting improved capture and storage of triboelectric electrons. These Eu2O3–BaTiO3/PVDF-HFP electrospun-nanofiber TENGs could harvest mechanical energy and power electronic devices; they were robust and not affected by the operating temperature or humidity. Furthermore, we used a fabricated device as a sensor for application as a light-emitting diode dimmer switch and for the tracking of leg movement.

Graphical abstract: Enhanced triboelectric properties of Eu2O3-doped BaTiO3/PVDF-HFP nanofibers

Supplementary files

Article information

Article type
Paper
Submitted
27 okt. 2022
Accepted
16 jan. 2023
First published
16 jan. 2023

Nanoscale, 2023,15, 3823-3831

Enhanced triboelectric properties of Eu2O3-doped BaTiO3/PVDF-HFP nanofibers

X. Wu, J. Zhang, C. Lee and M. Lin, Nanoscale, 2023, 15, 3823 DOI: 10.1039/D2NR05990H

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