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Recent Advances in Functional Materials for Piezoelectric Energy Harvesters and Potential Applications

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "D1: Advanced Energy Materials".

Deadline for manuscript submissions: 15 December 2024 | Viewed by 3157

Special Issue Editors


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Guest Editor
1. Department of Electrical Engineering and Information Technology, Chemnitz University of Technology, 09126 Chemnitz, Germany
2. Laboratory of Electromechanical Systems (LASEM), University of Sfax, National School of Engineers of Sfax (ENIS), Tunisia
Interests: piezoelectric energy; nanogenerators; nanocomposites; energy harvesting

Special Issue Information

Dear Colleagues,

The current global energy crisis and environmental pollutions have put pressure on scientists to accelerate the rollout of cleaner and more sustainable renewable energy that can be available in the ambient environment. Mechanical energy is the most abundant ambient energy source that can be converted into useful electric power. The piezoelectric transduction mechanism is the prominent mechanical energy-harvesting mechanism owing to its high electromechanical coupling factor and piezoelectric coefficient compared to electrostatic, electromagnetic, and triboelectric transductions. Therefore, piezoelectric energy harvesting has received extensive interest scientist.

In the last decade, extensive progress in the direction of micro and nanoscale materials and manufacturing processes has been witnessed, enabling the fabrication of piezoelectric generators with remarkable and exceptional features such as enhanced electromechanical coupling factor, piezoelectric coefficient, flexibility, stretchability, and integrability for diverse applications.

In particular, the fabrication of energy harvesting with flexible structures has recently become a hot research topic. Up to now, numerous researchers have utilized different functional materials such as perovskite ferroelectric structures embedded within a polymer matrix.

The aim of this Special Issue is to present the most recent advances in functional materials to improve extant models of energy harvester, develop piezoelectric energy harvesters with exceptional features, and present interesting applications for piezoelectric energy harvesters.

It is our honor to announce the launch of this Special Issue of Energies, entitled “Recent Advances in Functional Materials for Piezoelectric Energy Harvesters and Potential Applications”, and cordially invite all researchers working in relevant fields to contribute their review and research reports.

Topics of interest for publication include, but are not limited to:

  • Piezoelectric energy harvesters
  • Piezoelectric nanogenerators
  • Functional materials for piezoelectric energy harvesting
  • Polymer nanocomposite based piezoelectric energy harvesting
  • Biocompatible energy harvesters
  • Energy management for low-power piezoelectric energy harvesters
  • Application of energy harvesting

Dr. Ayda Bouhamed
Prof. Dr. Olfa Kanoun
Guest Editors

Manuscript Submission Information

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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

  • piezoelectric energy harvesters
  • nanogenerators
  • perovskite materials
  • functional materials for piezoelectric energy harvesting
  • polymer nanocomposite based piezoelectric energy harvesting
  • biocompatible energy harvesters

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Published Papers (2 papers)

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Research

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18 pages, 6965 KiB  
Article
Optimizing Piezoelectric Bimorphs for Energy Harvesting from Body Motion: Finger Movement in Computer Mouse Clicking
by Theetuch Chinachatchawarat, Theerawat Pattarapongsakorn, Patitta Ploypray, Thitima Jintanawan and Gridsada Phanomchoeng
Energies 2024, 17(16), 4121; https://doi.org/10.3390/en17164121 - 19 Aug 2024
Viewed by 967
Abstract
Electrical devices are integral to daily life, but limited battery life remains a significant issue. A proposed solution is to convert dissipated energy from human motion into electricity using piezoelectric materials. This study investigates lead–zirconate–titanate (PZT) piezoelectric materials in bimorph configuration, conducts performance [...] Read more.
Electrical devices are integral to daily life, but limited battery life remains a significant issue. A proposed solution is to convert dissipated energy from human motion into electricity using piezoelectric materials. This study investigates lead–zirconate–titanate (PZT) piezoelectric materials in bimorph configuration, conducts performance tests to understand their characteristics and determine the optimal load resistance, and develops an energy-harvesting prototype. Performance tests adjusted input parameters and varied load resistance and input magnitude to optimize power gained from the PZT bimorph. A suitable human movement for the application of the bimorph is a mouse-clicking motion by fingers. A prototype was created by integrating the bimorph into a computer mouse to capture energy from clicks. The results showed that the deformation rate of the PZTs, input magnitude, and resistance load were key factors in optimization. The bimorph configuration produced 0.34 mW of power and 5.5 V at an optimum load of 5072 Ω, requiring less effort to generate electricity. For the computer mouse energy harvester case, it yielded a total average power of approximately 38.4 μW per click with a click frequency of 4 Hz. This power could be used to support IoT devices such as human sensors (e.g., CO2, temperature, and pulse sensors) and smart home sensors, enabling comprehensive health and environmental monitoring. In conclusion, input specifications, magnitude, and load resistance are essential for optimizing piezoelectric energy harvesters. Full article
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Review

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35 pages, 9916 KiB  
Review
A Comprehensive Review of Strategies toward Efficient Flexible Piezoelectric Polymer Composites Based on BaTiO3 for Next-Generation Energy Harvesting
by Ayda Bouhamed, Sarra Missaoui, Amina Ben Ayed, Ahmed Attaoui, Dalel Missaoui, Khawla Jeder, Nesrine Guesmi, Anouar Njeh, Hamadi Khemakhem and Olfa Kanoun
Energies 2024, 17(16), 4066; https://doi.org/10.3390/en17164066 - 16 Aug 2024
Cited by 1 | Viewed by 1530
Abstract
The increasing need for wearable and portable electronics and the necessity to provide a continuous power supply to these electronics have shifted the focus of scientists toward harvesting energy from ambient sources. Harvesting energy from ambient sources, including solar, wind, and mechanical energies, [...] Read more.
The increasing need for wearable and portable electronics and the necessity to provide a continuous power supply to these electronics have shifted the focus of scientists toward harvesting energy from ambient sources. Harvesting energy from ambient sources, including solar, wind, and mechanical energies, is a solution to meet rising energy demands. Furthermore, adopting lightweight power source technologies is becoming more decisive in choosing renewable energy technologies to power novel electronic devices. In this regard, piezoelectric nanogenerators (PENGs) based on polymer composites that can convert discrete and low-frequency irregular mechanical energy from their surrounding environment into electricity have attracted keen attention and made considerable progress. This review highlights the latest advancements in this technology. First, the working mechanism of piezoelectricity and the different piezoelectric materials will be detailed. In particular, the focus will be on polymer composites filled with lead-free BaTiO3 piezoceramics to provide environmentally friendly technology. The next section will discuss the strategies adopted to enhance the performance of BaTiO3-based polymer composites. Finally, the potential applications of the developed PENGs will be presented, and the novel trends in the direction of the improvement of PENGs will be detailed. Full article
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