Fabrication and Pressure Sensing Analysis of ZnO/PVDF Composite Microfiber Arrays by Low-voltage Near-field Electrospinning

doi:10.7503/cjcu20160847

Chem. J. Chinese Universities ›› 2017, Vol. 38 ›› Issue (6): 997.doi: 10.7503/cjcu20160847

• Special Articles of China International Conference on Electrospinning(CICE 2016) • Previous Articles Next Articles

Fabrication and Pressure Sensing Analysis of ZnO/PVDF Composite Microfiber Arrays by Low-voltage Near-field Electrospinning

SI Wenyan, ZHANG Hongdi^*(), LIU Yanjie, ZHAO Aijing, ZHANG Zhiguang, GONG Maogang, ZHANG Juncheng, LONG Yunze^*()

Collaborative Innovation Center for Nanomaterials and Optoelectronic Devices,College of Physics, Qingdao University, Qingdao 266071, China

Received:2016-11-28 Online:2017-06-10 Published:2017-05-22
Contact: ZHANG Hongdi,LONG Yunze E-mail:hongdi_zhang@163.com;yunze.long@163.com
Supported by:
This paper is supported by the China Postdoctoral Science Foundation(No.2016M592128), the Natural Science Foundation of Shandong Province, China(No.ZR2016AM22), the National Natural Science Foundation of China(Nos.51373082, 11304173 and 11404181) and the Taishan Scholars Program of Shandong Province, China(No.20120528).

Abstract

Abstract:

Parallel arrays of ZnO/polyvinylidene fluoride(PVDF) microfibers were successfully prepared by low-voltage near-field electrospinning. The ZnO/PVDF microfiber arrays were characterized by optical microscope, scanning electron microscope(SEM) and energy dispersive X-ray spectroscopy(EDS). The average diameter of the composite fibers was about 40 μm. The EDS analysis demonstrated that ZnO nanoparticles have been doped into the parallel microfibers. Some related piezoelectric properties and electrical properties are presented in this paper. The piezoelectric properties of the ZnO/PVDF microfiber arrays are enhanced, and the mechanism is discussed briefly. These results indicate that the low-voltage near-field electrospun ZnO/PVDF composite microfibers have potential application in piezoelectric pressure sensors and nanogenerators.

Key words: ZnO/PVDF composite microfiber, Low-voltage near-field electrospining, Piezoelectric pressure sensor

CLC Number:

O631

TrendMD:

SI Wenyan, ZHANG Hongdi, LIU Yanjie, ZHAO Aijing, ZHANG Zhiguang, GONG Maogang, ZHANG Juncheng, LONG Yunze. Fabrication and Pressure Sensing Analysis of ZnO/PVDF Composite Microfiber Arrays by Low-voltage Near-field Electrospinning[J]. Chem. J. Chinese Universities, 2017, 38(6): 997.

Figures/Tables 7

Fig.1 Optical microscope micrograph of ZnO/PVDF microfiber arrays

Fig.2 SEM image of ZnO/PVDF microfiber arrays

Fig.3 EDS spectrum of ZnO/PVDF microfiber arrays

Table 1 Data of EDS of ZnO/PVDF composite fibers

Element	C	O	F	Zn	Total
Mass fraction(%)	34.65	7.34	48.95	9.06	100
Atom fraction(%)	47.61	7.57	42.53	2.29	100

Fig.4 Sketch of pressure sensing of ZnO/PVDF microfiber arrays

Fig.5 Time-dependent current curve of ZnO/PVDF microfiber arrays at 5 V bias

Fig.6 Time-dependent current curves of ZnO/PVDF microfiber arrays at 0 V bias with instantaneous pressure

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Fabrication and Pressure Sensing Analysis of ZnO/PVDF Composite Microfiber Arrays by Low-voltage Near-field Electrospinning

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