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

Xin-Xian Wu; Jun-Jie Zhang; Chia-Hsien Lee; Meng-Fang Lin

doi:10.1039/d2nr05990h

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

Nanoscale. 2023 Feb 23;15(8):3823-3831. doi: 10.1039/d2nr05990h.

Authors

Xin-Xian Wu^{1

2}, Jun-Jie Zhang¹, Chia-Hsien Lee^{1

3}, Meng-Fang Lin^{1

2

3}

Affiliations

¹ Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, Taiwan.
² Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei City, Taiwan.
³ Research Center for Intelligent Medical Devices, Ming Chi University of Technology, New Taipei City, Taiwan.

PMID: 36723194
DOI: 10.1039/d2nr05990h

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.