High power piezoelectric energy harvester for a temperature monitoring system
In this study, we present a lead-free, piezoelectric energy harvester capable of generating power in the milliwatt range. The harvester consists of four layers of polyvinylidene difluoride piezoelectric polymer, bonded to a cantilever with a tip mass. The cantilever’s resonance frequency was measured at 13.4 Hz. The piezoelectric layers are connected in parallel, resulting in a total capacitance of 27 nF. At resonance, under open-circuit conditions, the harvester generates nearly 90 Vpp when subjected to an acceleration of 1 g. When impedance is matched, the maximum power output reaches 2.4 mW. In addition, we integrated the harvester with commercially available signal conditioning cards, enabling conversion from an AC signal to a steady 3.3 V DC signal useful for electronics to evaluate their efficiency in charging a capacitor. Finally, we demonstrated the harvester’s functionality in an autonomous system that measures and displays temperature on a digital screen. The system operated autonomously for 6.5 h.
Authors
- Liana Wassouf
- Costel‐Sorin Cojocaru (ORCID: https://orcid.org/0000-0002-9601-4647)
- Emmanuel Defaÿ (ORCID: https://orcid.org/0000-0003-1462-8969)
- Torsten Granzow (ORCID: https://orcid.org/0000-0002-3777-4689)
- Paolo Bondavalli (ORCID: https://orcid.org/0000-0001-8782-3998)
- Veronika Kovacova (ORCID: https://orcid.org/0000-0002-9281-3732)
- Nagamalleswara Rao Alluri (ORCID: https://orcid.org/0000-0001-7997-8260)
- Vincent Frick (ORCID: https://orcid.org/0000-0001-9579-2466)
- Gilles Feugnet (ORCID: https://orcid.org/0000-0002-9120-9744)
- Jérôme Polesel‐Maris (ORCID: https://orcid.org/0000-0003-0457-619X)
- Olivier Bouton (ORCID: https://orcid.org/0000-0003-3321-9394)
Institutions
- Centre National de la Recherche Scientifique (FR)
- École Polytechnique (FR)
- Université Sorbonne Nouvelle (FR)
- University of Luxembourg (LU)
- Thales (Australia) (AU)
- Luxembourg Institute of Science and Technology (LU)
- Laboratoire de Physique des Interfaces et des Couches Minces (FR)
- Thales (France) (FR)
- Université de Strasbourg (FR)
Publication Details
- Journal
- APL Electronic Devices
- Published
- 2025-03-01
- DOI
- https://doi.org/10.1063/5.0253362
- Citations
- 4
- Primary Topic
- Innovative Energy Harvesting Technologies
- Type
- article
- Field-Weighted Citation Impact
- 2.85
Funders
- Agence Nationale de la Recherche
- Fonds National de la Recherche Luxembourg