Influence of Steric Hindrance on Ferro‐ and Piezoelectric Performance of Poly(vinylidene fluoride)‐Based Ferroelectric Polymers

2019 ◽  
Vol 220 (21) ◽  
pp. 1900273 ◽  
Author(s):  
Zhong Li ◽  
Jiani Liao ◽  
Ziting Xi ◽  
Weiwei Zhu ◽  
Zhicheng Zhang
Keyword(s):  
Steric Hindrance ◽  
Vinylidene Fluoride ◽  
Ferroelectric Polymers ◽  
Poly Vinylidene Fluoride ◽  
Piezoelectric Performance

scholarly journals A Method for Quantitatively Separating the Piezoelectric Component from the as-received "Piezoelectric" Signal

2021 ◽  
Author(s):  
Chaojie Chen ◽  
Shilong Zhao ◽  
Caofeng Pan ◽  
Yunlong Zi ◽  
Fangcheng Wang ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Piezoelectric Effect ◽  
Piezoelectric Materials ◽  
Contact Electrification ◽  
Poly Vinylidene Fluoride ◽  
Implantable Electronics ◽  
The Time Domain ◽  
Electric Signals ◽  
Piezoelectric Devices ◽  
Piezoelectric Performance

Abstract Polymer-based piezoelectric devices are promising for developing future wearable force sensors, nanogenerators, and implantable electronics etc. The electric signals generated by them are often assumed as solely coming from piezoelectric effect. However, triboelectric signals originated from contact electrification between the piezoelectric devices and the contacted objects can produce non-negligible interfacial electron transfer, which is often combined with the piezoelectric signal to give a triboelectric-piezoelectric hybrid output, leading to an exaggerated measured “piezoelectric” signal. Herein, a simple and effective method is proposed for quantitatively identifying and extracting the piezoelectric charge from the hybrid signal. The triboelectric and piezoelectric parts in the hybrid signal generated by a poly(vinylidene fluoride)-based device are clearly differentiated, and their force and charge characteristics in the time domain are identified. This work presents an effective method to elucidate the true piezoelectric performance in practical measurement, which is crucial for evaluating piezoelectric materials fairly and correctly.

Tuning the ferroelectric phase transition of PVDF by uniaxially stretching crosslinked PVDF films with CFCH bonds

2020 ◽  
Vol 8 (33) ◽  
pp. 11426-11440
Author(s):  
Xiao Wang ◽  
Baobao Qiao ◽  
Shaobo Tan ◽  
Weiwei Zhu ◽  
Zhicheng Zhang
Keyword(s):  
Phase Transition ◽  
Ferroelectric Phase Transition ◽  
Vinylidene Fluoride ◽  
Ferroelectric Phase ◽  
Relaxor Ferroelectric ◽  
Artificial Muscles ◽  
Ferroelectric Polymers ◽  
Poly Vinylidene Fluoride ◽  
Electrostrictive Properties

Poly(vinylidene fluoride) (PVDF) based relaxor ferroelectric polymers show great potential for applications in transducers, sensors and artificial muscles for their excellent electrostrictive properties.

scholarly journals Origins of Electrostriction in Poly(vinylidene fluoride)-Based Ferroelectric Polymers

2020 ◽  
Vol 53 (24) ◽  
pp. 10942-10954
Author(s):  
Thumawadee Wongwirat ◽  
Zhiwen Zhu ◽  
Guanchun Rui ◽  
Ruipeng Li ◽  
Pitak Laoratanakul ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Ferroelectric Polymers ◽  
Poly Vinylidene Fluoride
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