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New Trends in Ferroelectric Nanocomposites Materials: Characterization, Properties and Applications

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A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: closed (20 March 2022) | Viewed by 7095

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Special Issue Editors

Dr. Vladimir Shvartsman

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Guest Editor

Institute for Materials Science, Universitat Duisburg-Essen, Universitätsstraße 15, 45141 Essen, Germany
Interests: ferroelectrics; multiferroics; relaxors; scanning probe microscopy; piezoresponse force microscopy; magnetoelectric effect; electrocaloric effect
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Dr. Maxim Silibin

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Guest Editor

National Research University of Electronic Technology – MIET Bld. 1, Shokin Square, 124498 Zelenograd, Moscow, Russia
Interests: ferroelectrics; ferromagnetics; magnetic structure; phase transitions; electroactive polymers; magnetoelectric coupling

Special Issue Information

Dear Colleagues,

Nowadays, the development of ferroelectric nanocomposite materials, including polymer-inorganic, multiferroic, or ferroelectric-relaxor composites is attracting a considerable interest. The combination of different phases not only results in an improvement in the functional properties of the components, but can also lead to emergence new synergetic functionalities, e.g., magnetoelectric effect in multiferroic composites. Ferroelectric composites find applications in actuators, sensors, energy storage and harvesting devices, energy converters, memory elements, etc. Of particular interest are nanostructured composites with a large interface area that is beneficial for enhanced coupling between compositesʹ components.

This Special Issue of Materials aims to highlight and summarize recent trends in synthesis, properties, and applications of ferroelectric nanocomposites. Different kinds of composites: polymer-inorganic, multiferroic, ceramic-ceramic, etc. with various connectivity (3-0, 3-3, 3-1, 2-2) are covered. Contributions in the areas of experimental studies and theoretical modelling, macroscopic and nanoscale characterization of these materials as well as development of devices based on them are welcomed. All authors with expertise in these topics are cordially invited to submit their manuscripts to this Special Issue. Original research papers, communications, and reviews covering the current state of the art will be considered.

Dr. Vladimir Shvartsman
Dr. Maxim Silibin
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. Materials is an international peer-reviewed open access semimonthly 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 2600 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
ferroelectric polymers
multiferroic composites
relaxors
nanocomposites
scanning probe microscopy
energy storage
energy harvesting
nanogenerators
piezoelectric

Published Papers (3 papers)

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Research

12 pages, 2121 KiB

Open AccessArticle

High Energy Storage Density in Nanocomposites of P(VDF-TrFE-CFE) Terpolymer and BaZr_0.2Ti_0.8O₃ Nanoparticles

by Yusra Hambal, Vladimir V. Shvartsman, Ivo Michiels, Qiming Zhang and Doru C. Lupascu

Materials 2022, 15(9), 3151; https://doi.org/10.3390/ma15093151 - 27 Apr 2022

Cited by 5 | Viewed by 2540

Abstract

Polymer materials are actively used in dielectric capacitors, in particular for energy storage applications. An enhancement of the stored energy density can be achieved in composites of electroactive polymers and dielectric inorganic fillers with a high dielectric permittivity. In this article, we report on the energy storage characteristics of composites of relaxor terpolymer P(VDF-TrFE-CFE) and BaZr_0.2Ti_0.8O₃ (BZT) nanoparticles. The choice of materials was dictated by their large dielectric permittivity in the vicinity of room temperature. Free-standing composite films, with BZT contents up to 5 vol.%, were prepared by solution casting. The dielectric properties of the composites were investigated over a wide range of frequencies and temperatures. It was shown that the addition of the BZT nanoparticles does not affect the relaxor behavior of the polymer matrix, but significantly increases the dielectric permittivity. The energy storage parameters were estimated from the analysis of the unipolar polarization hysteresis loops. The addition of the BZT filler resulted in the increasing discharge energy density. The best results were achieved for composites with 1.25–2.5 vol.% of BZT. In the range of electric fields to 150 MV/m, the obtained materials demonstrate a superior energy storage density compared to other P(VDF-TFE-CFE) based composites reported in the literature. Full article

(This article belongs to the Special Issue New Trends in Ferroelectric Nanocomposites Materials: Characterization, Properties and Applications)

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9 pages, 1364 KiB

Open AccessArticle

Mode Coupling at around M-Point in PZT

by Sergey Vakhrushev, Alexey Filimonov, Konstantin Petroukhno, Andrey Rudskoy, Stanislav Udovenko, Igor Leontyev and Alexei Bosak

Materials 2022, 15(1), 79; https://doi.org/10.3390/ma15010079 - 23 Dec 2021

Viewed by 1844

Abstract

The question of the microscopic origin of the M-superstructure and additional satellite peaks in the Zr-rich lead zirconate-titanate is discussed for nearly 50 years. Clear contradiction between the selection rules of the critical scattering and the superstructure was found preventing unambiguous attributing of the observed superstructure either to the rotation of the oxygen octahedra or to the antiparallel displacements of the lead cations. Detailed analysis of the satellite pattern explained it as the result of the incommensurate phase transition rather than antiphase domains. Critical dynamics is the key point for the formulated problems. Recently, the oxygen tilt soft mode in the PbZr

_{0.976}

_{0.024}

_{3}

(PZT2.4) was found. But this does not resolve the extinction rules contradiction. The results of the inelastic X-ray scattering study of the phonon spectra of PZT2.4 around M-point are reported. Strong coupling between the lead and oxygen modes resulting in mode anticrossing and creation of the wide flat part in the lowest phonon dispersion curves is identified. This flat part corresponds to the mixture of the displacements of the lead and oxygen ions and can be an explanation of the extinction rules contradiction. Moreover, a flat dispersion surface is a typical prerequisite for the incommensurate phase transition. Full article

(This article belongs to the Special Issue New Trends in Ferroelectric Nanocomposites Materials: Characterization, Properties and Applications)

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9 pages, 1442 KiB

Open AccessArticle

Crystal and Magnetic Structure Transitions in BiMnO_3+δ Ceramics Driven by Cation Vacancies and Temperature

by Dmitry V. Karpinsky, Maxim V. Silibin, Dmitry V. Zhaludkevich, Siarhei I. Latushka, Vadim V. Sikolenko, Daniel M. Többens, Denis Sheptyakov, Vladimir A. Khomchenko and Alexei A. Belik

Materials 2021, 14(19), 5805; https://doi.org/10.3390/ma14195805 - 4 Oct 2021

Cited by 4 | Viewed by 1981

Abstract

The crystal structure of BiMnO_3+δ ceramics has been studied as a function of nominal oxygen excess and temperature using synchrotron and neutron powder diffraction, magnetometry and differential scanning calorimetry. Increase in oxygen excess leads to the structural transformations from the monoclinic structure (C2/c) to another monoclinic (P2₁/c), and then to the orthorhombic (Pnma) structure through the two-phase regions. The sequence of the structural transformations is accompanied by a modification of the orbital ordering followed by its disruption. Modification of the orbital order leads to a rearrangement of the magnetic structure of the compounds from the long-range ferromagnetic to a mixed magnetic state with antiferromagnetic clusters coexistent in a ferromagnetic matrix followed by a frustration of the long-range magnetic order. Temperature increase causes the structural transition to the nonpolar orthorhombic phase regardless of the structural state at room temperature; the orbital order is destroyed in compounds BiMnO_3+δ (δ ≤ 0.14) at temperatures above 470 °C. Full article

(This article belongs to the Special Issue New Trends in Ferroelectric Nanocomposites Materials: Characterization, Properties and Applications)

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