Ferroelectric and piezoelectric properties of poly (vinylidene fluoride–trifluoroethylene) gels
M Fukagawa, Y Koshiba, M Morimoto… - Japanese journal of …, 2017 - iopscience.iop.org
M Fukagawa, Y Koshiba, M Morimoto, K Ishida
Japanese journal of applied physics, 2017•iopscience.iop.orgThe structural, ferroelectric, and piezoelectric properties of poly (vinylidene fluoride–
trifluoroethylene)[P (VDF–TrFE)] gels fabricated using poly (pyridinium-1, 4-
diyliminocarbonyl-1, 4-phenylenemethylene thiocyanate)(PICPM-SCN) as a gelator are
investigated in this study. The P (VDF–TrFE)/PICPM-SCN composites formed thermally
reversible physical gels and their analysis by Fourier transform infrared spectroscopy
revealed that the P (VDF–TrFE) molecules in these gels exhibit predominantly the …
trifluoroethylene)[P (VDF–TrFE)] gels fabricated using poly (pyridinium-1, 4-
diyliminocarbonyl-1, 4-phenylenemethylene thiocyanate)(PICPM-SCN) as a gelator are
investigated in this study. The P (VDF–TrFE)/PICPM-SCN composites formed thermally
reversible physical gels and their analysis by Fourier transform infrared spectroscopy
revealed that the P (VDF–TrFE) molecules in these gels exhibit predominantly the …
Abstract
The structural, ferroelectric, and piezoelectric properties of poly (vinylidene fluoride–trifluoroethylene)[P (VDF–TrFE)] gels fabricated using poly (pyridinium-1, 4-diyliminocarbonyl-1, 4-phenylenemethylene thiocyanate)(PICPM-SCN) as a gelator are investigated in this study. The P (VDF–TrFE)/PICPM-SCN composites formed thermally reversible physical gels and their analysis by Fourier transform infrared spectroscopy revealed that the P (VDF–TrFE) molecules in these gels exhibit predominantly the ferroelectric phase I (Form β). Furthermore, the polarization switching peaks of the P (VDF–TrFE)/PICPM-SCN gel films were clearly observed. The coercive electric field for these gel films was estimated to be 2 MV/m, which is dramatically lower than the values typically observed for P (VDF–TrFE) solid films (50 MV/m). Finally, the P (VDF–TrFE)/PICPM-SCN gel films exhibited a piezoelectric response, and the highest piezoelectric coefficient was determined to be∼ 53 pm/V at an applied voltage frequency of 4 kHz.
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