scholarly journals The negative piezoelectric effect of the ferroelectric polymer poly(vinylidene fluoride)

2015 ◽  
Vol 15 (1) ◽  
pp. 78-84 ◽  
Author(s):  
Ilias Katsouras ◽  
Kamal Asadi ◽  
Mengyuan Li ◽  
Tim B. van Driel ◽  
Kasper S. Kjær ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Piezoelectric Effect ◽  
Ferroelectric Polymer ◽  
Poly Vinylidene Fluoride

Molecular modeling of the piezoelectric effect in the ferroelectric polymer poly(vinylidene fluoride) (PVDF)

2013 ◽  
Vol 19 (9) ◽  
pp. 3591-3602 ◽  
Author(s):  
Vladimir S. Bystrov ◽  
Ekaterina V. Paramonova ◽  
Igor K. Bdikin ◽  
Anna V. Bystrova ◽  
Robert C. Pullar ◽  
...  
Keyword(s):  
Molecular Modeling ◽  
Vinylidene Fluoride ◽  
Piezoelectric Effect ◽  
Ferroelectric Polymer ◽  
Poly Vinylidene Fluoride

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.

Characteristic Behavior of PVDF-Compliant Structure as an End Effector Using Creo Element/Pro Release 5.0

2020 ◽  
pp. 203-212
Author(s):  
Neeta Sahay ◽  
Subrata Chattopadhyay
Keyword(s):  
Vinylidene Fluoride ◽  
Piezoelectric Effect ◽  
Specific Point ◽  
End Effector ◽  
Compliant Structure ◽  
Characteristic Behavior ◽  
Poly Vinylidene Fluoride ◽  
Opening And Closing ◽  
Area Of Application

The tremendous area of application of microprocessors and microcontrollers has exhausted the demand for polymers as sensors among the fastest growing technologies of the $18 billion sensor market worldwide. This chapter presents the study of characteristic behavior of a compliance structure made of PVDF (Poly Vinylidene Fluoride) material which is acting as an actuator and sensor, too. The inverse piezoelectric nature of PVDF has been used to produce the required amount of force by applying the voltage at a specific point at the base of the structure which is generating the opening and closing of the end effector. The displacement of the tip of the end effector can be sensed by generated voltage of piezoelectric effect of PVDF.

Chemically Cross-Linked Thin Poly(vinylidene fluoride-co-trifluoroethylene)Films for Nonvolatile Ferroelectric Polymer Memory

2011 ◽  
Vol 3 (2) ◽  
pp. 582-589 ◽  
Author(s):  
Yu Jin Shin ◽  
Seok Ju Kang ◽  
Hee Joon Jung ◽  
Youn Jung Park ◽  
Insung Bae ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Ferroelectric Polymer ◽  
Poly Vinylidene Fluoride ◽  
Polymer Memory

The flexible non-volatile memory devices using oxide semiconductors and ferroelectric polymer poly(vinylidene fluoride-trifluoroethylene)

2011 ◽  
Vol 99 (1) ◽  
pp. 012901 ◽  
Author(s):  
Gwang-Geun Lee ◽  
Eisuke Tokumitsu ◽  
Sung-Min Yoon ◽  
Yoshihisa Fujisaki ◽  
Joo-Won Yoon ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Memory Devices ◽  
Oxide Semiconductors ◽  
Ferroelectric Polymer ◽  
Poly Vinylidene Fluoride ◽  
Non Volatile Memory ◽  
Volatile Memory

scholarly journals Preparation, Physical Properties, and Applications of Water-Based Functional Polymer Inks

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1419
Author(s):  
Edgar Gutiérrez-Fernández ◽  
Jing Cui ◽  
Daniel E. Martínez-Tong ◽  
Aurora Nogales
Keyword(s):  
Physical Properties ◽  
Polymer Coating ◽  
Vinylidene Fluoride ◽  
Semiconducting Polymer ◽  
Functional Polymer ◽  
Ferroelectric Polymer ◽  
Solvent Displacement ◽  
Water Based ◽  
Poly Vinylidene Fluoride

In this study, water-based functional polymer inks are prepared using different solvent displacement methods, in particular, polymer functional inks based on semiconducting polymer poly(3-hexylthiophene) and the ferroelectric polymer poly(vinylidene fluoride) and its copolymers with trifluoroethylene. The nanoparticles that are included in the inks are prepared by miniemulsion, as well as flash and dialysis nanoprecipitation techniques and we discuss the properties of the inks obtained by each technique. Finally, an example of the functionality of a semiconducting/ferroelectric polymer coating prepared from water-based inks is presented.

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