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Micromachines
Special Issues
Research Progress on Advanced Piezoelectric Energy Harvesters
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Research Progress on Advanced Piezoelectric Energy Harvesters

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

Deadline for manuscript submissions: 28 February 2026 | Viewed by 346

Special Issue Editor

Prof. Dr. Marek Placzek

E-Mail Website
Guest Editor
Department of Engineering Processes Automation and Integrated Manufacturing Systems, Silesian University of Technology, 44-100 Gliwice, Poland
Interests: piezoelectric materials; vibration damping; energy harvesting; sensors; actuators; smart materials and their applications; pneumatic drives and their energy efficiency; electromagnetic compatibility
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Smart materials are gaining popularity and are being increasingly used in the modern world. Their applications open up entirely new avenues for technological development and create new possibilities. This leads to the advancement of modern devices and technologies, enabling the creation of solutions that were previously unattainable. One such solution is energy harvesting using piezoelectric transducers. This offers a promising opportunity, for example, to generate electrical energy from vibrations and power electronic devices in situations where using wires or batteries is not feasible. To achieve the highest possible efficiency of such systems, extensive research is being conducted worldwide.

For this Special Issue, we invite the submission of original research articles and review papers that present innovative solutions in the field of piezoelectric energy harvesters. Contributions related to modeling, testing, and applications are welcome. I encourage you to submit studies that include results from conceptual work, as well as laboratory and real-world tests, and to explore topics involving the use of modern modeling and simulation methods.

Prof. Dr. Marek Placzek
Guest Editor

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. Micromachines is an international peer-reviewed open access monthly 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 2100 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

  • piezoelectricity
  • piezoelectric energy harvesting
  • piezoelectric energy harvester
  • applications of piezoelectric energy harvesters
  • novel piezoelectric materials for energy harvesting
  • self-powered wireless sensors
  • broadband energy harvester
  • energy harvester design
  • structural health monitoring
  • nonlinear generator
  • bistable generator
  • piezoelectric nanogenerator
  • vibration energy harvester

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Published Papers (1 paper)

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23 pages, 4352 KiB  
Article
Nondestructive Mechanical and Electrical Characterization of Piezoelectric Zinc Oxide Nanowires for Energy Harvesting
by Frank Eric Boye Anang, Markys Cain, Min Xu, Zhi Li, Uwe Brand, Darshit Jangid, Sebastian Seibert, Chris Schwalb and Erwin Peiner
Micromachines 2025, 16(8), 927; https://doi.org/10.3390/mi16080927 - 12 Aug 2025
Abstract
In this study we report on the structural, mechanical, and electrical characterization of different structures of vertically aligned zinc oxide (ZnO) nanowires (NWs) synthesized using hydrothermal methods. By optimizing the growth conditions, scanning electron microscopy (SEM) micrographs show that the ZnO NWs could [...] Read more.
In this study we report on the structural, mechanical, and electrical characterization of different structures of vertically aligned zinc oxide (ZnO) nanowires (NWs) synthesized using hydrothermal methods. By optimizing the growth conditions, scanning electron microscopy (SEM) micrographs show that the ZnO NWs could reach an astounding 51.9 ± 0.82 µm in length, 0.7 ± 0.08 µm in diameter, and 3.3 ± 2.1 µm−2 density of the number of NWs per area within 24 h of growth time, compared with a reported value of ~26.8 µm in length for the same period. The indentation modulus of the as-grown ZnO NWs was determined using contact resonance (CR) measurements using atomic force microscopy (AFM). An indentation modulus of 122.2 ± 2.3 GPa for the NW array sample with an average diameter of ~690 nm was found to be close to the reference bulk ZnO value of 125 GPa. Furthermore, the measurement of the piezoelectric coefficient (d33) using the traceable ESPY33 tool under cyclic compressive stress gave a value of 1.6 ± 0.4 pC/N at 0.02 N with ZnO NWs of 100 ± 10 nm and 2.69 ± 0.05 µm in diameter and length, respectively, which were embedded in an S1818 polymer. Current–voltage (I-V) measurements of the ZnO NWs fabricated on an n-type silicon (Si) substrate utilizing a micromanipulator integrated with a tungsten (W) probe exhibits Ohmic behavior, revealing an important phenomenon which can be attributed to the generated electric field by the tungsten probe, dielectric residue, or conductive material. Full article
(This article belongs to the Special Issue Research Progress on Advanced Piezoelectric Energy Harvesters)
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