writer：8. Guimao Fu, Yongqing He, Yongri Liang, Shifeng He, Rui Xue, Yibo Wu, Weiyong Yu, and Qisong Shi*
keywords：piezoelectric performance
source：期刊
specific source：J Mater Sci: Mater Electron (2022), 3, 22183–22195
Issue time：2022年

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 FeCl36H2O as fillers. The effects of

Eu(TTA)3(TPPO)2 and FeCl36H2O 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 b-phase with piezoelectric properties by nearly 20%, reaching

96.9%. The sandwich structure of the PU/P(VDF-HFP)-Eu(TTA)3(TPPO)2-

FeCl36H2O/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