Cargando…
Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing
Piezoelectric poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) nanofibers fabricated by electrospinning have drawn increasing levels of attention in the fields of flexible sensors and nanogenerators. However, the directional dependence of piezoelectricity of electrospun nanofibers remains e...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6414850/ https://www.ncbi.nlm.nih.gov/pubmed/30966399 http://dx.doi.org/10.3390/polym10040364 |
_version_ | 1783403054777761792 |
---|---|
author | Jiang, Yonggang Gong, Longlong Hu, Xiaohe Zhao, Yong Chen, Huawei Feng, Lin Zhang, Deyuan |
author_facet | Jiang, Yonggang Gong, Longlong Hu, Xiaohe Zhao, Yong Chen, Huawei Feng, Lin Zhang, Deyuan |
author_sort | Jiang, Yonggang |
collection | PubMed |
description | Piezoelectric poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) nanofibers fabricated by electrospinning have drawn increasing levels of attention in the fields of flexible sensors and nanogenerators. However, the directional dependence of piezoelectricity of electrospun nanofibers remains elusive. In this study, the piezoelectric performances of individual nanofibers are characterized by piezoresponse force microscopy (PFM), while the effects of annealing on β-phase crystallinities are investigated by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The experimental results reveal that the as-spun P(VDF-TrFE) nanofibers form higher content of β-phase compared with spin-coated films, and the content of β-phase increases by annealing. The annealed P(VDF-TrFE) nanofiber exhibits distinct vertical polarization switching characteristics. The high piezoelectric output in the thickness direction and low piezoelectric output in the longitudinal direction of the nanofiber mats further confirm that the preferential dipole orientation of electrospun P(VDF-TrFE) nanofibers is normal to the surface of the substrate. Highly aligned P(VDF-TrFE) nanofibers show directional strain sensing ability due to the piezoelectric and mechanical anisotropy. |
format | Online Article Text |
id | pubmed-6414850 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64148502019-04-02 Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing Jiang, Yonggang Gong, Longlong Hu, Xiaohe Zhao, Yong Chen, Huawei Feng, Lin Zhang, Deyuan Polymers (Basel) Article Piezoelectric poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) nanofibers fabricated by electrospinning have drawn increasing levels of attention in the fields of flexible sensors and nanogenerators. However, the directional dependence of piezoelectricity of electrospun nanofibers remains elusive. In this study, the piezoelectric performances of individual nanofibers are characterized by piezoresponse force microscopy (PFM), while the effects of annealing on β-phase crystallinities are investigated by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The experimental results reveal that the as-spun P(VDF-TrFE) nanofibers form higher content of β-phase compared with spin-coated films, and the content of β-phase increases by annealing. The annealed P(VDF-TrFE) nanofiber exhibits distinct vertical polarization switching characteristics. The high piezoelectric output in the thickness direction and low piezoelectric output in the longitudinal direction of the nanofiber mats further confirm that the preferential dipole orientation of electrospun P(VDF-TrFE) nanofibers is normal to the surface of the substrate. Highly aligned P(VDF-TrFE) nanofibers show directional strain sensing ability due to the piezoelectric and mechanical anisotropy. MDPI 2018-03-25 /pmc/articles/PMC6414850/ /pubmed/30966399 http://dx.doi.org/10.3390/polym10040364 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Jiang, Yonggang Gong, Longlong Hu, Xiaohe Zhao, Yong Chen, Huawei Feng, Lin Zhang, Deyuan Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing |
title | Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing |
title_full | Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing |
title_fullStr | Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing |
title_full_unstemmed | Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing |
title_short | Aligned P(VDF-TrFE) Nanofibers for Enhanced Piezoelectric Directional Strain Sensing |
title_sort | aligned p(vdf-trfe) nanofibers for enhanced piezoelectric directional strain sensing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6414850/ https://www.ncbi.nlm.nih.gov/pubmed/30966399 http://dx.doi.org/10.3390/polym10040364 |
work_keys_str_mv | AT jiangyonggang alignedpvdftrfenanofibersforenhancedpiezoelectricdirectionalstrainsensing AT gonglonglong alignedpvdftrfenanofibersforenhancedpiezoelectricdirectionalstrainsensing AT huxiaohe alignedpvdftrfenanofibersforenhancedpiezoelectricdirectionalstrainsensing AT zhaoyong alignedpvdftrfenanofibersforenhancedpiezoelectricdirectionalstrainsensing AT chenhuawei alignedpvdftrfenanofibersforenhancedpiezoelectricdirectionalstrainsensing AT fenglin alignedpvdftrfenanofibersforenhancedpiezoelectricdirectionalstrainsensing AT zhangdeyuan alignedpvdftrfenanofibersforenhancedpiezoelectricdirectionalstrainsensing |