Nanoscale Ferroelectric Materials and Their Application

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Synthesis, Interfaces and Nanostructures".

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 1360

Special Issue Editor


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Guest Editor
Faculty of Physics, Vilnius University, 10222 Vilnius, Lithuania
Interests: synthesis and application of ferroelectrics; nanomaterials and nanocomposites for sensing and coatings; broadband characterization; ferroelectrics for energy storage and renewable energy production
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Special Issue Information

Dear Colleagues,

Ferroelectrics materials are widely investigated due their unique nonlinear, piezoelectric, piroelectric, electrocaloric and other properties. Currently, special attention is being paid to the control of ferroelectric properties at the nanoscale via the synthesis and investigation of objects with restricted geometry: nanoparticles, thin films, composites with nanoparticles, ferroelectric nanoregions and domains. New phenomena such as size effect, flexoelectricity, ferroelectric domain dynamics and others are important in the control and modification of the properties of ferroelectrics at the nanoscale. Therefore, nanoscale ferroelectrics are perspective materials for the exploitation of modern devices such as memristrors and memtransistors, negative capacitance transistors, Mott transistors, new tunneling devices, harvesting devices and sensors. Miniaturized integrated electronics applications also require further development and a deeper understanding of the technology and functioning of nanoferroelectric materials, as well as the investigation and optimization of the modified properties.

The aim of this Special Issue is to present a contemporary view of ferroelectric multifunctional materials, both at nanoscale and in a general view, which are highly important materials for electronics applications. This Special Issue aims to collect manuscripts dealing with all aspects of the structure, synthesis, properties, technologies, and investigation techniques of ferroelectric nanoparticles, thin films, composites, all forms of ferroelectrics and related smart materials.

Dr. Jan Macutkevic
Guest Editor

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Keywords

  • ferroelectrics
  • nanoparticles
  • thin films
  • perovskites
  • composites
  • synthesis

Published Papers (1 paper)

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Research

25 pages, 9881 KiB  
Article
High-Entropy Lead-Free Perovskite Bi0.2K0.2Ba0.2Sr0.2Ca0.2TiO3 Powders and Related Ceramics: Synthesis, Processing, and Electrical Properties
by Vasile-Adrian Surdu, Mariana-Andreea Marinică, Roxana-Elena Pătru, Ovidiu-Cristian Oprea, Adrian Ionuț Nicoară, Bogdan Ștefan Vasile, Roxana Trușca and Adelina-Carmen Ianculescu
Nanomaterials 2023, 13(22), 2974; https://doi.org/10.3390/nano13222974 - 19 Nov 2023
Cited by 1 | Viewed by 1151
Abstract
A novel high-entropy perovskite powder with the composition Bi0.2K0.2Ba0.2Sr0.2Ca0.2TiO3 was successfully synthesized using a modified Pechini method. The precursor powder underwent characterization through Fourier Transform Infrared Spectroscopy and thermal analysis. The resultant [...] Read more.
A novel high-entropy perovskite powder with the composition Bi0.2K0.2Ba0.2Sr0.2Ca0.2TiO3 was successfully synthesized using a modified Pechini method. The precursor powder underwent characterization through Fourier Transform Infrared Spectroscopy and thermal analysis. The resultant Bi0.2K0.2Ba0.2Sr0.2Ca0.2TiO3 powder, obtained post-calcination at 900 °C, was further examined using a variety of techniques including X-ray diffraction, Raman spectroscopy, X-ray fluorescence, scanning electron microscopy, and transmission electron microscopy. Ceramic samples were fabricated by conventional sintering at various temperatures (900, 950, and 1000 °C). The structure, microstructure, and dielectric properties of these ceramics were subsequently analyzed and discussed. The ceramics exhibited a two-phase composition comprising cubic and tetragonal perovskites. The grain size was observed to increase from 35 to 50 nm, contingent on the sintering temperature. All ceramic samples demonstrated relaxor behavior with a dielectric maximum that became more flattened and shifted towards lower temperatures as the grain size decreased. Full article
(This article belongs to the Special Issue Nanoscale Ferroelectric Materials and Their Application)
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