Effect of electrospinning parameters and polymer concentrations on mechanical-to-electrical energy conversion of randomly-oriented electrospun poly(vinylidene fluoride) nanofiber mats

Shao, Hao, Fang, Jian, Wang, Hongxia and Lin, Tong 2015, Effect of electrospinning parameters and polymer concentrations on mechanical-to-electrical energy conversion of randomly-oriented electrospun poly(vinylidene fluoride) nanofiber mats, RSC advances, vol. 5, no. 19, pp. 14345-14350, doi: 10.1039/c4ra16360e.

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Title Effect of electrospinning parameters and polymer concentrations on mechanical-to-electrical energy conversion of randomly-oriented electrospun poly(vinylidene fluoride) nanofiber mats
Author(s) Shao, Hao
Fang, JianORCID iD for Fang, Jian orcid.org/0000-0003-2981-9733
Wang, Hongxia
Lin, TongORCID iD for Lin, Tong orcid.org/0000-0002-1003-0671
Journal name RSC advances
Volume number 5
Issue number 19
Start page 14345
End page 14350
Total pages 6
Publisher Royal Society of Chemistry
Place of publication Cambridge, Eng.
Publication date 2015
ISSN 2046-2069
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
PIEZOELECTRIC PROPERTIES
CRYSTALLINE PHASES
FIBROUS MATS
POLYMORPHISM
PVDF
MORPHOLOGY
MEMBRANES
FIBERS
NANOGENERATOR
DEGRADATION
Summary Poly(vinylidene fluoride) (PVDF) nanofiber mats prepared by an electrospinning technique were used as an active layer for making mechanical-to-electric energy conversion devices. The effects of PVDF concentration and electrospinning parameters (e.g. applied voltage, spinning distance), as well as nanofiber mat thickness on the fiber diameter, PVDF β crystal phase content, and mechanical-to-electrical energy conversion properties of the electrospun PVDF nanofiber mats were examined. It was interesting to find that finer uniform PVDF fibers showed higher β crystal phase content and hence, the energy harvesting devices had higher electrical outputs, regardless of changing the electrospinning parameters and PVDF concentration. The voltage output always changed in the same trend to the change of current output whatever the change trend was caused by the operating parameters or polymer concentration. Both voltage and current output changes followed a similar trend to the change of the β crystal phase content in the nanofibers. The nanofiber mat thickness influenced the device electrical output, and the maximum output was found on the 70 μm thick nanofiber mat. These results suggest that uniform PVDF nanofibers with smaller diameters and high β crystal phase content facilitate mechanical-to-electric energy conversion. The understanding obtained from this study may benefit the development of novel piezoelectric nanofibrous materials and devices for various energy uses.
Language eng
DOI 10.1039/c4ra16360e
Field of Research 030599 Organic Chemistry not elsewhere classified
029999 Physical Sciences not elsewhere classified
Socio Economic Objective 850599 Renewable Energy not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, The Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30076174

Document type: Journal Article
Collection: Institute for Frontier Materials
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