Abstract
In this paper, the electrospinning of Polyvinylidene hexafluoropropylene (P(VDF-HFP)) composite nanofibers was performed by adding rare earth complexes Eu(TTA)3(TPPO)2 and FeCl3·6H2O as fillers. The effects of Eu(TTA)3(TPPO)2 and FeCl3·6H2O fillers on the morphology, crystal structure, thermal properties, and fluorescence properties of P(VDF-HFP) composite nanofibers were investigated by the scanning electron microscopy, Fourier transform infrared spectroscopy, atomic force microscopy, X-ray diffraction, and differential scanning calorimetry and fluorescence. The mechanical properties, sensitivity, ferroelectric properties, and piezoelectric output of monolayer and sandwich structure composite nanofiber membranes used as sensors were studied. The results show that the synergistic effect of double fillers increases the content of β-phase with piezoelectric properties by nearly 20%, reaching 96.9%. The sandwich structure of the PU/P(VDF-HFP)-Eu(TTA)3(TPPO)2-FeCl3·6H2O/PU flexible sensor has high sensitivity (~ 0.29 kPa− 1), high piezoelectric output (~ 3.7 V), high strain (~ 230%), and fluorescence characteristics. It is expected to be applied in wearable flexible sensors, photoelectric devices, and other fields.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author upon reasonable request.
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Funding
This study was supported by the National Natural Science Foundation of China (No. 52073033), the fund of the Beijing Municipal Education Commission, China (No. 22019821001), and Beijing excellent talent training fund (No. Z2019-042).
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GF participated in the data curation, formal analysis, investigation, validation, visualization, and writing of the original draft. YH participated in the data curation and formal analysis. YL contributed to writing, reviewing, & editing of the manuscript. SH participated in the data curation and formal analysis. RX participated in the data curation and formal analysis. YW contributed to writing, reviewing, & editing of the manuscript. WY contributed to writing, reviewing, & editing of the manuscript. QS participated in the supervision, conceptualization, and writing, reviewing, & editing of the manuscript.
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Fu, G., He, Y., Liang, Y. et al. Enhanced piezoelectric performance of rare earth complex-doped sandwich-structured electrospun P(VDF-HFP) multifunctional composite nanofiber membranes. J Mater Sci: Mater Electron 33, 22183–22195 (2022). https://doi.org/10.1007/s10854-022-08998-w
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DOI: https://doi.org/10.1007/s10854-022-08998-w