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Membranes
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Application of Ferroelectric-Polymer Composites
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Application of Ferroelectric-Polymer Composites

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Polymeric Membranes".

Deadline for manuscript submissions: closed (31 March 2022) | Viewed by 19342

Special Issue Editors

Dr. He Li

E-Mail Website1 Website2
Guest Editor
The Molecular Foundry, Lawrence Berkeley National Laboratory 1 Cyclotron Road, Building 67, Berkeley, CA 94720, USA
Interests: dielectric polymers; polymer nanocomposites; covalent organic frameworks; capacitive energy storage; electrical insulation; high-voltage measurements
Special Issues, Collections and Topics in MDPI journals
Dr. Yifei Wang

E-Mail Website1 Website2
Guest Editor
Electrical Insulation Research Center, Institute of Materials Science, University of Connecticut97 North Eagleville Road, U-3136, Storrs, CT 06269, USA
Interests: exploring advanced dielectrics for electrical energy storage and insulating applications, via structural design and interfacial engineering

Special Issue Information

Dear Colleagues,

The discovery of the ferroelectric phenomena in polymers has aroused tremendous research interest in these flexible materials with intriguing piezo-, pyro-, and ferroelectric behaviors in response to applied electric fields. A library of organic and/or inorganic components with varied morphologies has been introduced into ferroelectric polymers to form composites, which have been demonstrated to be successful in improving multiple physical properties at different scales and have led to a broad range of energy- and electronics-related applications. Specifically, growing attention has been given to ferroelectric-polymer composites due to their unique dielectric properties, e.g., high dielectric constant (k) and high breakdown strength, which is a rich and timely subject among the communities of synthetic chemistry, solid-state physics, materials science, and electrical & electronic engineering.

This Membranes Special Issue, entitled “Applications of Ferroelectric-Polymer Composites,” intends to gather original studies, as full papers or short communications, and critical reviews on the development and application of advanced ferroelectric-polymer composites. It seeks to include but is not limited to the modification and fabrication of ferroelectric-polymer composites (FPCs), high-energy-density FPCs for electrical energy storage, high-k FPCs for transistors, FPCs for piezo- and pyroelectric transducers, FPCs for flexible electronics, nanogenerators based on FPCs for mechanical energy harvesting, and FPCs with high electrocaloric effect for solid-state cooling. Furthermore, the development and manufacturing of electronic devices and systems related to the above topics are welcome.

Kind regards,

Dr. He Li
Dr. Yifei Wang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Membranes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • ferroelectric polymers
  • polymer composites
  • dielectric constant
  • dielectric breakdown strength
  • dielectric polarization
  • piezoelectricity
  • pyroelectricity
  • energy storage
  • energy harvesting
  • electricaloric effect

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Published Papers (6 papers)

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Research

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14 pages, 1910 KiB  
Article
Antibacterial Ferroelectric Hybrid Membranes Fabricated via Electrospinning for Wound Healing
by Ivan V. Lukiev, Ludmila S. Antipina, Semen I. Goreninskii, Tamara S. Tverdokhlebova, Dmitry V. Vasilchenko, Anna L. Nemoykina, Daria A. Goncharova, Valery A. Svetlichnyi, Georgiy T. Dambaev, Vyacheslav M. Bouznik and Evgeny N. Bolbasov
Membranes 2021, 11(12), 986; https://doi.org/10.3390/membranes11120986 - 17 Dec 2021
Cited by 7 | Viewed by 2946
Abstract
In the present study, wound healing ferroelectric membranes doped with zinc oxide nanoparticles were fabricated from vinylidene fluoride-tetrafluoroethylene copolymer and polyvinylpyrrolidone using the electrospinning technique. Five different ratios of vinylidene fluoride-tetrafluoroethylene to polyvinylpyrrolidone were used to control the properties of the membranes at [...] Read more.
In the present study, wound healing ferroelectric membranes doped with zinc oxide nanoparticles were fabricated from vinylidene fluoride-tetrafluoroethylene copolymer and polyvinylpyrrolidone using the electrospinning technique. Five different ratios of vinylidene fluoride-tetrafluoroethylene to polyvinylpyrrolidone were used to control the properties of the membranes at a constant zinc oxide nanoparticle content. It was found that an increase of polyvinylpyrrolidone content leads to a decrease of the spinning solution conductivity and viscosity, causing a decrease of the average fiber diameter and reducing their strength and elongation. By means of X-ray diffraction and infrared spectroscopy, it was revealed that increased polyvinylpyrrolidone content leads to difficulty in crystallization of the vinylidene fluoride-tetrafluoroethylene copolymer in the ferroelectric β-phase in membranes. Changing the ratio of vinylidene fluoride-tetrafluoroethylene copolymer and polyvinylpyrrolidone with a constant content of zinc oxide nanoparticles is an effective approach to control the antibacterial properties of membranes towards Staphylococcus aureus. After carrying out in vivo experiments, we found that ferroelectric hybrid membranes, containing from five to ten mass percent of PVP, have the greatest wound-healing effect for the healing of purulent wounds. Full article
(This article belongs to the Special Issue Application of Ferroelectric-Polymer Composites)
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9 pages, 1330 KiB  
Article
Pyroelectric Properties of BaxSr(1−x)TiO3/PVDF-TrFE Coating on Silicon
by Mariya Aleksandrova, Arya Sohan, Pratap Kollu and Georgi Dobrikov
Membranes 2021, 11(8), 577; https://doi.org/10.3390/membranes11080577 - 30 Jul 2021
Cited by 1 | Viewed by 2330
Abstract
Bilayer coatings of barium strontium titanate (BaxSr(1−x)TiO3)/poly [(vinylidenefluoride-co-trifluoroethylene] (PVDF-TrFE) were integrated on silicon Si (100) for pyroelectric devices. Pyroelectric properties of the composite were determined for different electrode materials (silver and aluminum) and different electrodes configurations creating [...] Read more.
Bilayer coatings of barium strontium titanate (BaxSr(1−x)TiO3)/poly [(vinylidenefluoride-co-trifluoroethylene] (PVDF-TrFE) were integrated on silicon Si (100) for pyroelectric devices. Pyroelectric properties of the composite were determined for different electrode materials (silver and aluminum) and different electrodes configurations creating an electric field in parallel and in-plane direction in the ferroelectric coating. For this purpose, parallel-plate and planar interdigital capacitors were fabricated. Anisotropy in the pyroelectric response was noted for the different directions of the measured electrical potential. The dynamic method was used to evaluate the pyroelectric properties in the temperature range of 22 to 48 °C. Pyroelectric response with a higher value was observed at the one plate’s configuration of interdigital electrodes. The voltage response was the strongest when silver contacts were used. At temperatures near room temperature, the voltage increased by 182 µV at resolution of 7 µV/°C for the in-plain device configuration, vs. 290 µV at a resolution of 11 µV/°C for the out-of-plain configuration. A relationship between the surface morphology of the ferroelectric oxide and oxide/polymer coating and the pyroelectric voltage was also found, proving the smoothening effect of the introduction of polymer PVDF-TrFE over the BaSrTiO3 grains. Full article
(This article belongs to the Special Issue Application of Ferroelectric-Polymer Composites)
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9 pages, 1761 KiB  
Article
Application of Fractional Calculus to Modeling the Non-Linear Behaviors of Ferroelectric Polymer Composites: Viscoelasticity and Dielectricity
by Ruifan Meng
Membranes 2021, 11(6), 409; https://doi.org/10.3390/membranes11060409 - 29 May 2021
Cited by 14 | Viewed by 2537
Abstract
Ferroelectric polymer composites normally show non-linear mechanical and electrical behaviors due to the viscoelastic and dielectric relaxation of polymer matrixes. In this paper, a fractional calculus approach is used to describe the non-linear behavior of ferroelectric polymer composites from both viscoelastic and dielectric [...] Read more.
Ferroelectric polymer composites normally show non-linear mechanical and electrical behaviors due to the viscoelastic and dielectric relaxation of polymer matrixes. In this paper, a fractional calculus approach is used to describe the non-linear behavior of ferroelectric polymer composites from both viscoelastic and dielectric perspectives. The fractional elements for viscoelasticity and dielectricity are “spring-pot” and “cap-resistor”, which can capture the intermediate properties between spring and dashpot or capacitor and resistor, respectively. For modeling the viscoelastic deformation, the “spring-pot” equation is directly used as the fractional mechanical model. By contrast, for the dielectricity of ferroelectric polymer composites, which is usually characterized by dielectric constants and dielectric losses, the “cap-resistor” equation is further formulated into the frequency domain by Fourier transform to obtain the fractional order dielectric model. The comparisons with experimental results suggest that the proposed models can well describe the viscoelastic deformation as well as the frequency dependence of the dielectric constant and dielectric loss of ferroelectric polymer composites. It is noted that the fractional order dielectric model needs to be separated into two regions at low and high frequencies due to the polarization effect. Additionally, when the dipole relaxations occur at higher frequencies, the proposed model cannot describe the rise of the dielectric loss curve. Full article
(This article belongs to the Special Issue Application of Ferroelectric-Polymer Composites)
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8 pages, 2068 KiB  
Communication
The Influence Mechanism of Temperature and Storage Period on Polarization Properties of Poly (Vinylidene Fluoride–Trifluoroethylene) Ultrathin Films
by Xingjia Li, Zhi Shi, Xiuli Zhang, Xiangjian Meng, Zhiqiang Huang and Dandan Zhang
Membranes 2021, 11(5), 301; https://doi.org/10.3390/membranes11050301 - 21 Apr 2021
Cited by 2 | Viewed by 2090
Abstract
The effect of testing temperature and storage period on the polarization fatigue properties of poly (vinylidene fluoride-trifluoroethylene) (P(VDF–TrFE)) ultrathin film devices were investigated. The experimental results show that, even after stored in air for 150 days, the relative remanent polarization ( [...] Read more.
The effect of testing temperature and storage period on the polarization fatigue properties of poly (vinylidene fluoride-trifluoroethylene) (P(VDF–TrFE)) ultrathin film devices were investigated. The experimental results show that, even after stored in air for 150 days, the relative remanent polarization (Pr/Pr(0)) of P(VDF–TrFE) of ultrathin films can keep at a relatively high level of 0.80 at 25 °C and 0.70 at 60 °C. To account for this result, a hydrogen fluoride (HF) formation inhibition mechanism was proposed, which correlated the testing temperature and the storage period with the microstructure of P(VDF–TrFE) molecular chain. Moreover, a theoretical model was constructed to describe the polarization fatigue evolution of P(VDF–TrFE) samples. Full article
(This article belongs to the Special Issue Application of Ferroelectric-Polymer Composites)
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9 pages, 2788 KiB  
Article
Preparation and Properties of Crystalline IGZO Thin Films
by Xiao Wang, Zhihua Shen, Jie Li and Shengli Wu
Membranes 2021, 11(2), 134; https://doi.org/10.3390/membranes11020134 - 14 Feb 2021
Cited by 11 | Viewed by 4708
Abstract
IGZO thin films can be used as active layers of thin-film transistors and have been widely studied. However, amorphous indium gallium zinc oxide (IGZO) fabricated at room temperature is vulnerable in subsequent manufacturing processes, such as etching and sputtering; this limits IGZO thin [...] Read more.
IGZO thin films can be used as active layers of thin-film transistors and have been widely studied. However, amorphous indium gallium zinc oxide (IGZO) fabricated at room temperature is vulnerable in subsequent manufacturing processes, such as etching and sputtering; this limits IGZO thin film transistors’ (TFTs) use in commercial products. In this paper, we prepared a c-axis crystallized IGZO thin film by Radio Frequency (RF) sputtering at 180 °C, with a 50% O2 ratio and 110 W power. XRD images show that the crystallized film has an obvious diffraction peak near 31°, and the spacing between the crystal surfaces was calculated to be ≈0.29 nm. The HRTEM map confirmed the above results. The stability of IGZO thin films was investigated by etching them with an acid solution. The crystalline IGZO films exhibited better acid corrosion resistance, and their anticorrosion performance was 74% higher than that of amorphous IGZO (a-IGZO) films, indicating the crystalline IGZO film can provide more stable performance in applications. Full article
(This article belongs to the Special Issue Application of Ferroelectric-Polymer Composites)
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Review

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20 pages, 72275 KiB  
Review
Research Advances in Hierarchically Structured PVDF-Based All-Organic Composites for High-Energy Density Capacitors
by Xiaoyong Zhang, Longyan Zhang, Meng Li, Weixing Chen, Jie Chen, Yan-Jun Liu and Yifei Wang
Membranes 2022, 12(3), 274; https://doi.org/10.3390/membranes12030274 - 27 Feb 2022
Cited by 10 | Viewed by 3143
Abstract
Polymer film capacitors have been widely applied in many pulsed power fields owing to their fastest energy-released rates. The development of ferroelectric polyvinylidene fluoride (PVDF)-based composites has become one of the hot research directions in the field of high-energy storage capacitors. Recently, hierarchically-structured [...] Read more.
Polymer film capacitors have been widely applied in many pulsed power fields owing to their fastest energy-released rates. The development of ferroelectric polyvinylidene fluoride (PVDF)-based composites has become one of the hot research directions in the field of high-energy storage capacitors. Recently, hierarchically-structured all-organic composites have been shown to possess excellent comprehensive energy storage performance and great potential for application. In this review, most research advances of hierarchically-structured all-organic composites for the energy storage application are systematically classified and summarized. The regulating strategies of hierarchically structured all-organic composites are highlighted from the perspective of preparation approaches, tailored material choices, layer thicknesses, and interfaces. Systematic comparisons of energy storage abilities are presented, including electric displacement, breakdown strength, energy storage density, and efficiency. Finally, we present the remaining problems of hierarchically structured all-organic composites and provide an outlook for future energy storage applications. Full article
(This article belongs to the Special Issue Application of Ferroelectric-Polymer Composites)
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