In:
Smart Materials and Structures, IOP Publishing, Vol. 32, No. 9 ( 2023-09-01), p. 095018-
Abstract:
Electrospun nanofibers are widely used in flexible piezoelectric sensors. However, producing multifunctional sensors with comprehensive coverage and high sensitivity remains challenging. In this work, we designed a multifunctional and flexible piezoelectric sensor. We obtained polyacrylonitrile (PAN)/MXene/ZnS:Cu nanofibers by electrospinning, while the diameter of the nanofibers was characterized by using scanning electron microscopy, x-ray diffraction spectroscopy, and Fourier transform infrared (FTIR) spectroscopy. X-ray diffraction and FTIR spectroscopy showed that the synergistic effect of MXene and ZnS:Cu promotes the content of planar zigzag conformation of PAN (94.16%). The ferroelectric and mechanical properties of the nanofibers were characterized by ferrometry and stretching, and their energy storage efficiency reached 94.05%, and the elongation at break increased to 97.5%. The piezoelectric sensor was fabricated with PAN/MXene/ZnS:Cu nanofibers. Under less pressure (0.098–1.96 N), it had a sensitivity of 2.46 V N −1 , and at a frequency of 3 Hz, using a slight force percussion, its output voltage reached 10 V, which was twice that of pure PAN nanofibers. The output current was 50 μ A. Its good sensitivity could be used to detect small body movement signals. Our results showed that PAN/MXene/ZnS:Cu nanofibers can fabricate multifunctional sensors, and the excellent performance of the piezoelectric sensor makes it have great application potential in the next generation of wearable electronic products.
Type of Medium:
Online Resource
ISSN:
0964-1726
,
1361-665X
DOI:
10.1088/1361-665X/aceb43
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2023
detail.hit.zdb_id:
1115038-5
detail.hit.zdb_id:
2002821-0
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