Sensors and energy harvesters based on (1–x)PMN-xPT piezoelectric ceramics

Lifi, Houda; Ennawaoui, Chouaib; Hajjaji, Abdelowahed; Touhtouh, Samira; Laasri, Said; Yessari, Madiha; Benjellοun, Mohammed

doi:10.1051/epjap/2019190085

Cited by 13 publications

(5 citation statements)

References 37 publications

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“…Piezoelectric materials are crystalline materials with a piezoelectric effect, usually including piezoelectric crystals (single crystals) [73,74], piezoelectric ceramics (polycrystalline semiconductors) [75][76][77], and polymer piezoelectric materials [78,79]. Under the external force, the piezoelectric material generates a polarization phenomenon inside to be charged and generate a voltage signal.…”

Section: Piezoelectric Auxetic Sensormentioning

confidence: 99%

Sensors Based on Auxetic Materials and Structures: A Review

Dong

2023

Materials

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Auxetic materials exhibit a negative Poisson’s ratio under tension or compression, and such counter-intuitive behavior leads to enhanced mechanical properties such as shear resistance, impact resistance, and shape adaptability. Auxetic materials with these excellent properties show great potential applications in personal protection, medical health, sensing equipment, and other fields. However, there are still many limitations in them, from laboratory research to real applications. There have been many reported studies applying auxetic materials or structures to the development of sensing devices in anticipation of improving sensitivity. This review mainly focuses on the use of auxetic materials or auxetic structures in sensors, providing a broad review of auxetic-based sensing devices. The material selection, structure design, preparation method, sensing mechanism, and sensing performance are introduced. In addition, we explore the relationship between the auxetic mechanism and the sensing performance and summarize how the auxetic behavior enhances the sensitivity. Furthermore, potential applications of sensors based on the auxetic mechanism are discussed, and the remaining challenges and future research directions are suggested. This review may help to promote further research and application of auxetic sensing devices.

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Section: Piezoelectric Auxetic Sensormentioning

confidence: 99%

Sensors Based on Auxetic Materials and Structures: A Review

Dong

2023

Materials

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“…Comparison of MEMS energy harvester's performances (Ramadan et al, 2014;El Fatnani et al, 2018;Lifi et al, 2019;Zhang et al, 2019;Ennawaoui et al, 2019;Muralt et al, 2009;Shen et al, 2008;Van Minh et al, 2013;Marzencki et al, 2008;Elfrink et al, 2009;Alamin Dow et al, 2014;Andosca et al, 2012). Power harvested by a piezoelectric material as a function of system parameters.…”

Section: Influence Of System Parameters On Harvested Powermentioning

confidence: 99%

Wave Energy Harvesting System Using Piezocomposite Materials

Malki¹,

Ennawaoui²,

Hajjaji³

et al. 2022

Trans. Marit. Sci.

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Marine energies are a strategic channel for renewable energies to diversify and complement the global energy mix. From this perspective, several researches have seen the light in order to allow the maximum exploitation possible of the energy estimated at 80,000 TWh/year, presenting multiple vacant possibilities concerning energy not yet exploited on a large scale. The purpose of this paper is the use of ocean vibratory energy coupling with a smart composite material in order to harvest the maximum power. This study will be devoted to the design, modeling, and simulation of a floating harvester energy system that combines the mechanical strength and flexibility of polymer with the high piezo and pyroelectric activities of ceramic. The harvester system is composed of a mass-spring system used to transfer wave movements to mechanical vibrations, and two piezoelectric lever devices will be used to amplify and convert the harvested mechanical vibration into electrical power. With this flexible device, the maximum power harvested is 56.45 μW/mm², using PU/PZT composite with the optimal resistance of 108 MΩ. Considering these results, this system can be used in very different ways in marine applications.

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“…where S M and f M are maximum transverse strain and mechanical excitation frequency, respectively. Substituting Equation ( 11) into (10), the current expression as a function of time and mechanical cycle excitation is expressed in the form:…”

Section: Piezoelectric Harvested Current Modelmentioning

confidence: 99%

“…Today, piezoelectric polymers have been considered for energy harvesting applications [5][6][7][8]. The material has remarkable fatigue resistance and environmental stability [9], but it has not been recognized as a promising energy harvesting material because of its low piezoelectric constants when compared to PZT ceramics [10][11][12]. Recently, researchers investigated porous piezoelectric polymers consisting of an ionized cellular polypropylene film made by a chemical elaboration method using nitrogen gas [13].…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric and Electromechanical Characteristics of Porous Poly(Ethylene-co-Vinyl Acetate) Copolymer Films for Smart Sensors and Mechanical Energy Harvesting Applications

Ennawaoui

Hajjaji

Samuel

et al. 2021

ASI

Self Cite

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This paper investigates energy harvesting performances of porous piezoelectric polymer films to collect electrical energy from vibrations and power various sensors. The influence of void content on the elastic matrix, dielectric, electrical, and mechanical properties of porous piezoelectric polymer films produced from available commercial poly(ethylene-co-vinyl acetate) using an industrially applicable melt-state extrusion method (EVA) were examined and discussed. Electrical and mechanical characterization showed an increase in the harvested current and a decrease in Young’s modulus with the increasing ratio of voids. Thermal analysis revealed a decrease in piezoelectric constant of the porous materials. The authors present a mathematical model that is able to predict harvested current as a function of matrix characteristics, mechanical excitation and porosity percentage. The output current is directly proportional to the porosity percentage. The harvested power significantly increases with increasing strain or porosity, achieving a power value up to 0.23, 1.55, and 3.87 mW/m3 for three EVA compositions: EVA 0%, EVA 37% and EVA 65%, respectively. In conclusion, porous piezoelectric EVA films has great potential from an energy density viewpoint and could represent interesting candidates for energy harvesting applications. Our work contributes to the development of smart materials, with potential uses as innovative harvester systems of energy generated by different vibration sources such as roads, machines and oceans.

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Sensors and energy harvesters based on (1–x)PMN-xPT piezoelectric ceramics

Cited by 13 publications

References 37 publications

Sensors Based on Auxetic Materials and Structures: A Review

Sensors Based on Auxetic Materials and Structures: A Review

Wave Energy Harvesting System Using Piezocomposite Materials

Piezoelectric and Electromechanical Characteristics of Porous Poly(Ethylene-co-Vinyl Acetate) Copolymer Films for Smart Sensors and Mechanical Energy Harvesting Applications

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