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Nanomaterials
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Advanced Piezoelectric Materials for Applications
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Advanced Piezoelectric Materials for Applications

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanocomposite Materials".

Deadline for manuscript submissions: closed (5 May 2023) | Viewed by 5475

Special Issue Editor

Dr. Svitlana Kopyl

E-Mail Website
Guest Editor
Department of Physics & CICECO−Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
Interests: new multifunctional materials with emerging physical and chemical properties; piezoelectric organic; hybrid materials for various applications

Special Issue Information

Dear Colleagues,

Inorganic ferroelectrics such as lead zirconate titanate (PZT), lithium niobate (LNO), and barium titanate (BTO) are widely used as efficient piezoelectrics for various applications. They possess high switchable polarization, strong piezoelectric response, and remarkable pyroelectric and electrooptic properties but have a number of disadvantages that preclude their use in some cases. First of all, they are not biologically compatible and require encapsulation for contact with the biological environment. Secondly, their processing requires high temperatures, so their miniaturization and integration with microelectromechanical systems (MEMS) are difficult. Moreover, inorganic materials are brittle and do not allow conformal deposition. Polymer-based piezoelectric materials, such as PVDF or its copolymer poly-(vinylidene fluoride)-trifluoroethylene (PVDF-TrFE), have several unique advantages over inorganic materials, such as good mechanical flexibility, ease of molding, chemical stability, and biocompatibility. These polymers are multifunctional and exhibit ferroelectric, piezoelectric, pyroelectric, and superior dielectric properties. Hybrid piezoelectric nanocomposites occur as a result of the integration of low- or high-density polymers (PE—polyethylene, PVDF, PP—polypropylene, etc.) and nanosized metal oxides (BaTiO3, SiO2, TiO2), possess unique properties, and are promising for various applications.

This Special Issue is open to contributions on the development and investigation of hybrid piezoelectric nanocomposites for a variety of applications.

Dr. Svitlana Kopyl
Guest Editor

Manuscript Submission Information

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Keywords

  • hybrid nanocomposites
  • polymer-based materials
  • piezoelectricity
  • application

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Published Papers (3 papers)

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Research

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11 pages, 1670 KiB  
Article
Triboelectric Generator Based on Oriented Self-Assembled Peptide Microbelts
by Vladislav Slabov, João Vidal, Pavel Zelenovskii, Svitlana Kopyl, Marco P. Soares dos Santos and Andrei Kholkin
Nanomaterials 2022, 12(22), 3955; https://doi.org/10.3390/nano12223955 - 10 Nov 2022
Viewed by 1535
Abstract
Along with piezoelectric nanogenerators, triboelectric nanogenerators (TENGs) collecting energy from mechanical vibrations proved to be simple, low-cost, and efficient sources of electricity for various applications. In view of possible biomedical applications, the search for TENGs made of biomolecular and biocompatible materials is demanding. [...] Read more.
Along with piezoelectric nanogenerators, triboelectric nanogenerators (TENGs) collecting energy from mechanical vibrations proved to be simple, low-cost, and efficient sources of electricity for various applications. In view of possible biomedical applications, the search for TENGs made of biomolecular and biocompatible materials is demanding. Diphenylalanine (FF) microstructures are promising for these applications due to their unique characteristics and ability to form various morphologies (microribbons, spherical vesicles, fibrils, micro- and nanotubes, nanorods, etc.). In this work, we developed a contact-separate mode TENG based on arrays of oriented FF microbelts deposited by dip-coating technique and studied their performance under various temperature treatments. We show that these TENGs outperform piezoelectric nanogenerators based on FF microbelts in terms of short-circuit current (ISC), open-circuit voltage (VOC), and output power. It was found that bound water captured in FF nanochannels mainly affects VOC, whereas mobile water increases ISC. We also found that the cyclization of FF molecules increases the performance of TENG likely due to an increase in surface energy and surface flattening. Full article
(This article belongs to the Special Issue Advanced Piezoelectric Materials for Applications)
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12 pages, 3622 KiB  
Article
Competition between Ferroelectric and Ferroelastic Domain Wall Dynamics during Local Switching in Rhombohedral PMN-PT Single Crystals
by Denis Alikin, Anton Turygin, Andrei Ushakov, Mikhail Kosobokov, Yurij Alikin, Qingyuan Hu, Xin Liu, Zhuo Xu, Xiaoyong Wei and Vladimir Shur
Nanomaterials 2022, 12(21), 3912; https://doi.org/10.3390/nano12213912 - 6 Nov 2022
Cited by 2 | Viewed by 2116
Abstract
The possibility to control the charge, type, and density of domain walls allows properties of ferroelectric materials to be selectively enhanced or reduced. In ferroelectric–ferroelastic materials, two types of domain walls are possible: pure ferroelectric and ferroelastic–ferroelectric. In this paper, we demonstrated a [...] Read more.
The possibility to control the charge, type, and density of domain walls allows properties of ferroelectric materials to be selectively enhanced or reduced. In ferroelectric–ferroelastic materials, two types of domain walls are possible: pure ferroelectric and ferroelastic–ferroelectric. In this paper, we demonstrated a strategy to control the selective ferroelectric or ferroelastic domain wall formation in the (111) single-domain rhombohedral PMN-PT single crystals at the nanoscale by varying the relative humidity level in a scanning probe microscopy chamber. The solution of the corresponding coupled electro-mechanical boundary problem allows explaining observed competition between ferroelastic and ferroelectric domain growth. The reduction in the ferroelastic domain density during local switching at elevated humidity has been attributed to changes in the electric field spatial distribution and screening effectiveness. The established mechanism is important because it reveals a kinetic nature of the final domain patterns in multiaxial materials and thus provides a general pathway to create desirable domain structure in ferroelectric materials for applications in piezoelectric and optical devices. Full article
(This article belongs to the Special Issue Advanced Piezoelectric Materials for Applications)
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Review

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32 pages, 2776 KiB  
Review
Piezoelectric Materials: Properties, Advancements, and Design Strategies for High-Temperature Applications
by Yanfang Meng, Genqiang Chen and Maoyong Huang
Nanomaterials 2022, 12(7), 1171; https://doi.org/10.3390/nano12071171 - 1 Apr 2022
Cited by 37 | Viewed by 6182
Abstract
Piezoelectronics, as an efficient approach for energy conversion and sensing, have a far-reaching influence on energy harvesting, precise instruments, sensing, health monitoring and so on. A majority of the previous works on piezoelectronics concentrated on the materials that are applied at close to [...] Read more.
Piezoelectronics, as an efficient approach for energy conversion and sensing, have a far-reaching influence on energy harvesting, precise instruments, sensing, health monitoring and so on. A majority of the previous works on piezoelectronics concentrated on the materials that are applied at close to room temperatures. However, there is inadequate research on the materials for high-temperature piezoelectric applications, yet they also have important applications in the critical equipment of aeroengines and nuclear reactors in harsh and high-temperature conditions. In this review, we briefly introduce fundamental knowledge about the piezoelectric effect, and emphatically elucidate high-temperature piezoelectrics, involving: the typical piezoelectric materials operated in high temperatures, and the applications, limiting factors, prospects and challenges of piezoelectricity at high temperatures. Full article
(This article belongs to the Special Issue Advanced Piezoelectric Materials for Applications)
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