Revisiting two piezoelectric salts within an eco-design paradigm for sensors and actuators applications

[Display omitted] •Investigation of piezoelectric salt advantage over other lead-free piezoelectric materials.•Study of two piezoelectric salt stability with respect to temperature.•Biodegradable piezoelectric salt-based structure manufactured and tested.•Green Piezoelectric Sensors and Actuators. W...

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Published in:Sensors and actuators. A. Physical. 2021-02, Vol.318, p.112483, Article 112483
Main Authors: Lemaire, Etienne, Thuau, Damien, Souêtre, Morgan, Zgainski, Léonard, Royet, Alexis, Atli, Atilla
Format: Article
Language:English
Subjects:
Acoustic waves
Actuators
ADP
Ammonium dihydrogen phosphate
Biodegradability
Biodegradable materials
Cellulose
Composite
Condensed Matter
Crystal structure
Eco-design
Eco-friendly
Electrodes
Electromagnetic wave filters
Energy harvesters
Energy harvesting
Fabrication
Green
Materials Science
Phosphates
Physics
Piezoelectric
Piezoelectric transducers
Resonators
Rochelle salt
Salt
Salts
Transducers
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Summary:[Display omitted] •Investigation of piezoelectric salt advantage over other lead-free piezoelectric materials.•Study of two piezoelectric salt stability with respect to temperature.•Biodegradable piezoelectric salt-based structure manufactured and tested.•Green Piezoelectric Sensors and Actuators. We manufactured eco-friendly piezoelectric transducers that are promising for several technological applications within an eco-design paradigm. Taking into account the environmental, eco-design and energetic constrains, two eco-friendly piezoelectric salts were investigated in this work: Rochelle Salt (KNaC4H4O6.4H2O) and Ammonium Dihydrogen Phosphate (NH4H2PO4). The piezoelectric resonance and temperature stability of these two salts were compared. Furthermore these two salt crystals were integrated into biodegradable structural material in order to obtain several eco-friendly piezoelectric devices such as resonating cantilevers, energy harvesters, and bulk acoustic wave (BAW) filters. These three types of devices were successfully fabricated and characterized, demonstrating the potential of these piezoelectric materials. The intrinsic performance of the devices might be unbeatable taking into account the fabrication costs and ecological aspects.
ISSN:0924-4247
1873-3069
DOI:10.1016/j.sna.2020.112483