Ferroelectric Materials for Advanced Devices

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "D:Materials and Processing".

Deadline for manuscript submissions: closed (30 November 2025) | Viewed by 897

Special Issue Editor


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Guest Editor
Swenson College of Science and Engineering, University of Minnesota Duluth, North Duluth, MN 55812, USA
Interests: ferroelectric and piezoelectric materials; piezoelectric smart composites and devices

Special Issue Information

Dear Colleagues,

Ferroelectric materials and biomaterials play critical roles in modern electronics, energy storage, sensing technologies, and biomedical applications. This Special Issue focuses on recent advances in these materials, covering both fundamental research and applied device engineering. We aim to highlight cutting-edge studies on the synthesis, characterization, and integration of ferroelectric thin films, bulk materials, and nanostructures, along with innovative developments in biomaterials for next-generation devices.

Key topics include novel ferroelectric and multiferroic materials, polarization switching mechanisms, domain wall engineering, and scaling effects. Additionally, we encourage contributions on device applications such as nonvolatile memories, energy harvesting (piezoelectric and pyroelectric generators), flexible and wearable electronics, neuromorphic computing, and high-performance sensors. In parallel, we welcome research on biomaterials for medical implants, tissue engineering, bioelectronics, and biocompatible sensors, emphasizing their role in advanced healthcare technologies.

This Special Issue seeks to bridge the gap between fundamental material research and practical implementations, promoting interdisciplinary collaboration among physicists, materials scientists, engineers, and biomedical researchers. We welcome original research articles, reviews, and perspectives that address challenges and opportunities in advancing ferroelectric materials, biomaterials, and their device applications. By bringing together recent discoveries and technological developments, this Special Issue aims to shape the future of advanced materials in electronics, energy, and healthcare systems.

Dr. Ping Zhao
Guest Editor

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Keywords

  • ferroelectric materials
  • multiferroics
  • polarization switching
  • domain engineering
  • thin films and nanostructures
  • energy harvesting
  • neuromorphic computing
  • flexible electronics
  • biomaterials
  • bioelectronics

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Published Papers (2 papers)

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Research

17 pages, 2111 KB  
Article
Experimental and Machine Learning Study of a Modified Cymbal Piezoelectric Energy Harvester
by Turuna Seecharan, Cobi Kiffmeyer, Nolan Voiles, Kyle Enrlichman, Alex Hankins and Ping Zhao
Micromachines 2025, 16(12), 1342; https://doi.org/10.3390/mi16121342 - 27 Nov 2025
Viewed by 212
Abstract
Cymbal piezoelectric energy harvesters offer an effective platform for converting mechanical vibrations into electrical energy due to their ability to exploit both longitudinal (d33) and transverse (d31) piezoelectric coefficients. However, the design of flexible cymbal structures that ensure efficient [...] Read more.
Cymbal piezoelectric energy harvesters offer an effective platform for converting mechanical vibrations into electrical energy due to their ability to exploit both longitudinal (d33) and transverse (d31) piezoelectric coefficients. However, the design of flexible cymbal structures that ensure efficient stress transfer to polymer-based piezoelectric materials remains insufficiently explored. In this study, a bridge-like cymbal harvester incorporating polyvinylidene fluoride (PVDF) films as the active layer was designed, fabricated, and experimentally investigated. To support the design process and reduce the computational burden associated with evaluating multiple geometric configurations, we developed a novel machine learning methodology that integrates singular value decomposition (SVD) with metamodeling. This framework provides rapid predictions of resonance behavior and electrical response from key design parameters. The findings demonstrate the feasibility of PVDF-based cymbal harvesters for flexible energy harvesting applications and establish an efficient data-driven approach for guiding future design optimization. Full article
(This article belongs to the Special Issue Ferroelectric Materials for Advanced Devices)
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14 pages, 3729 KB  
Article
Research on Piezoelectric Guided Wave Frequency Diverse Array-Based Damage Location Method for Thin-Walled Structures
by Changlin Wang, Quanyao Hu and Yongteng Zhong
Micromachines 2025, 16(10), 1172; https://doi.org/10.3390/mi16101172 - 16 Oct 2025
Viewed by 393
Abstract
Phased array technology can be realized with directional control with fixed beam steering. However, its directionally dependent beam pattern limits the efficiency of suppressing undesirable distance interference. This paper presents a guided wave frequency diverse array-based damage location method for thin-walled structures. Firstly, [...] Read more.
Phased array technology can be realized with directional control with fixed beam steering. However, its directionally dependent beam pattern limits the efficiency of suppressing undesirable distance interference. This paper presents a guided wave frequency diverse array-based damage location method for thin-walled structures. Firstly, a guided wave frequency diverse array signal model is derived with a relatively small frequency increment that can achieve distance–direction two-dimensional focusing. Secondly, three types of receiving arrays, including a monostatic array, following array, and symmetric array, are constructed to achieve the maximum damage-induced signal amplitude. Finally, a two-dimensional multiple signal classification (MUSIC)-based damage location method is applied for damage imaging in thin-walled structures. Simulations on an aluminum plate and the experiments on an epoxy laminate plate demonstrate the validity and effectiveness of the proposed method. Full article
(This article belongs to the Special Issue Ferroelectric Materials for Advanced Devices)
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