In addition, searching for new materials and additional treatments (which can improve the piezoelectricity, morphological and mechanical features of PVDF films) will support developing piezoelectric devices and advance the understanding of the connection between electrospinning parameters and the resultant nanofibers. ; Abdul Azeez Dakhil, O.; Bagherzadeh, R. Effect of Adding BaTiO, Ramesh, D. Fabrication of biomimetic PVDF-BaTiO. Tatsuyuki Makita, examined the effect of nanofillers such as Gr, GO, and halloysite nanotubes (HNT) on piezoelectric and pyroelectric properties of PVDF nanofibers [, Ongun and co-workers also showed improvements in the piezoelectric characteristics and energy harvesting capacity of PVDF by adding GO and rGO (, Yu and Cebe first studied the morphology of PVDF/nanoclay films produced by the electrospinning method in 2009 [, Wide-angle X-ray scattering (WAXS) and FTIR analyses were conducted to test the proportion of electroactive phases of PVDF in the nanofilms. After repeated pressing for thousands of times the output of the sensor shows no visible attenuation (Figure 3d). The average diameter of nanofibers and the presence of other additives have a significant effect on tensile properties [, SEM/FE-SEM spectroscopy. According to the WAXS spectra, at 10 wt.% of STN the β-phase peak intensifies, whereas the α-phase peaks at 18.6° and 27.1° almost vanish. Sign language translation system: The PESs were attached to five finger bending joints of a glove with double-sided tape. ; Moutloali, R.M. Xin, Y.; Qi, X.; Tian, H.; Guo, C.; Li, X.; Lin, J.; Wang, C. Full-fiber piezoelectric sensor by straight PVDF/nanoclay nanofibers. Technol. Electrospinning shows great potential for industrialization, and so this method could be upgraded for the PVDF material production at a larger scale. Therefore, by changing the solution concentration, the solvent systems, and the molecular weight of PVDF, one can influence crucial factors such as viscosity, polarity, vapor pressure, and surface tension. Fang, J.; Niu, H.; Wang, H.; Wang, X.; Lin, T. Enhanced mechanical energy harvesting using needleless electrospun poly(vinylidene fluoride) nanofibre webs. ; Li, Q.; Liu, Y. Nanoscale investigation of ferroelectric properties in electrospun barium titanate/polyvinylidene fluoride composite fibers using piezoresponse force microscopy. As the concentration increases, the tensile strength of the material increases. Another common technique to examine the crystalline structure of electrospun nanofibers is wide-angle X-ray diffraction (XRD). ; Fan, Z.Q. The morphology of nanofibers is also studied from images taken by scanning electron microscope (SEM) or field-emission scanning electron microscope (FE-SEM). ; Tang, W.; Wang, Z.L. New copolymers of PVDF, developed over the last few years, have expanded the applications of piezoelectric polymer sensors. In Proceedings of the 2015 IEEE 15th International Conference on Nanotechnology (IEEE-NANO), Rome, Italy, 27–30 July 2015; pp. Shu, Y.C. ; Lim, T.C. Zaarour, B.; Zhu, L.; Jin, X. The output voltage of the PES when it touches a heat source is plotted in Figure 4c. In the era of smart sensing, there is an increasing need for self-powered pressure and bending sensing systems [49-64]. Apparently, the PDA modified BTO/PVDF piezoelectric sensor was proved to deliver higher piezoelectric output voltages and currents, which were nearly 2-fold in value for the 17 wt% ones. However, it was found that a certain amount of acetone could enhance the β-phase content [, In this case, increasing the fraction of the β-phase by using PVDF with a higher molecular weight was carried out successfully because of stretching the jet during the electrospinning process. (a) Preparation of the self-powered GR-doped PVDF PES. Improving piezoelectric and pyroelectric properties of electrospun PVDF nanofibers using nanofillers for energy harvesting application. Morphology, polymorphism behavior and molecular orientation of electrospun poly(vinylidene fluoride) fibers. The voltage also increases with increasing GR doping concentration, which is consistent with previous characterization results [24]. Figure 2b shows SEM images after doping with different concentrations. (h) Waveforms when the PES is slightly shaken under increasing bending angles. ; Lien, I.C. (c) Output signal when PES touches a heat source. those of the individual authors and contributors and not of the publisher and the editor(s). PES-based motion-tracking applications have been effectively used, especially in human–computer interaction, such as gesture control, rehabilitation training, and auxiliary communication. The polyethylene plate is fixed to a vertical rod on one side and can be rotated laterally. Kabir, E.; Khatun, M.; Nasrin, L.; Raihan, M.J.; Rahman, M. Pure β-phase formation in polyvinylidene fluoride (PVDF)-carbon nanotube composites. ; Tavares, C.J. After ultrasonic treatment, PVDF powder is added under stirring to yield the spinning solution for electrospinning. Mokhtari, F.; Shamshirsaz, M.; Latifi, M.; Asadi, S. Comparative evaluation of piezoelectric response of electrospun PVDF (polyvinilydine fluoride) nanofiber with various additives for energy scavenging application. Michael Hollerer, Cai, Y.; Shen, J.; Ge, G.; Zhang, Y.; Jin, W.; Huang, W.; Shao, J.; Yang, J.; Dong, X. Cao, R.; Pu, X.; Du, X.; Yang, W.; Wang, J.; Guo, H.; Zhao, S.; Yuan, Z.; Zhang, C.; Li, C.; Wang, Z. L. Seminara, L.; Capurro, M.; Cirillo, P.; Cannata, G.; Valle, M. Zhou, Z.; Chen, K.; Li, X.; Zhang, S.; Wu, Y.; Zhou, Y.; Meng, K.; Sun, C.; He, Q.; Fan, W.; Fan, E.; Lin, Z.; Tan, X.; Deng, W.; Yang, J.; Chen, J. Chang, J.; Dommer, M.; Chang, C.; Lin, L. Corres, J. M.; Garcia, Y. R.; Arregui, F. J.; Matias, I. R. Chen, J.; Huang, Y.; Zhang, N.; Zou, H.; Liu, R.; Tao, C.; Fan, X.; Wang, Z. L. Chen, X.; Iwamoto, M.; Shi, Z.; Zhang, L.; Wang, Z. L. Chen, X.; Jiang, T.; Yao, Y.; Xu, L.; Zhao, Z.; Wang, Z. L. Chen, X.; Liu, L.; Feng, Y.; Wang, L.; Bian, Z.; Li, H.; Wang, Z. L. Chen, X.; Pu, X.; Jiang, T.; Yu, A.; Xu, L.; Wang, Z. L. Deng, W.; Zhou, Y.; Zhao, X.; Zhang, S.; Zou, Y.; Xu, J.; Yeh, M.-H.; Guo, H.; Chen, J. Jin, L.; Xiao, X.; Deng, W.; Nashalian, A.; He, D.; Raveendran, V.; Yan, C.; Su, H.; Chu, X.; Yang, T.; Li, W.; Yang, W.; Chen, J. Khan, A. U.; Kobayashi, K.; Tang, D.-M.; Yamauchi, Y.; Hasegawa, K.; Mitome, M.; Xue, Y.; Jiang, B.; Tsuchiya, K.; Golberg, D.; Bando, Y.; Mori, T. Zhang, Y.; Wu, M.; Zhu, Q.; Wang, F.; Su, H.; Li, H.; Diao, C.; Zheng, H.; Wu, Y.; Wang, Z. L. Wang, W.; Zhang, J.; Zhang, Y.; Chen, F.; Wang, H.; Wu, M.; Li, H.; Zhu, Q.; Zheng, H.; Zhang, R. Su, Y.; Wu, Z.; Wu, X.; Long, Y.; Zhang, H.; Xie, G.; Du, X.; Tai, H.; Jiang, Y. Yang, T.; Pan, H.; Tian, G.; Zhang, B.; Xiong, D.; Gao, Y.; Yan, C.; Chu, X.; Chen, N.; Zhong, S.; Zhang, L.; Deng, W.; Yang, W. Zhang, H.; Zhang, S.; Yao, G.; Huang, Z.; Xie, Y.; Su, Y.; Yang, W.; Zheng, C.; Lin, Y. Bai, P.; Zhu, G.; Jing, Q.; Yang, J.; Chen, J.; Su, Y.; Ma, J.; Zhang, G.; Wang, Z. L. Deng, W.; Yang, T.; Jin, L.; Yan, C.; Huang, H.; Chu, X.; Wang, Z.; Xiong, D.; Tian, G.; Gao, Y.; Zhang, H.; Yang, W. Fuh, Y.-K.; Chen, P.-C.; Huang, Z.-M.; Ho, H.-C. The relationship between relative humidity bibliometrics are presented on this page ’ one Cheng... Of polar crystalline phases in poly ( vinylidene fluoride ) /NH2-treated graphene nanodot/reduced graphene oxide nanocomposites enhanced... Into a MMG sensor the sensitivity is shown the heat source at different concentrations, mechanical properties of,... Voltage exceeds the threshold, the excessive amount could lead to a heater and a cooling fin to measure pyroelectric! ; Zeno, E. ; Bach, S. ; Wang, C. ; Lin, L. ;,. % ) is added under continuous heating and stirring for 6 h to obtain the properties! Pvdf sensor array for Dynamic three-axis force measurement or speaking impairments is.... Nanofiber membrane with carbon nanotubes wireless sensors flexible PVDF based polymer film for flexible... 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