Piezoelectric energy harvesting using mechanical metamaterials and phononic crystals

Lee, Geon; Lee, Dongwoo; Park, Jeong Hoon; Jang, Yeongtae; Kim, Miso; Rho, Junsuk

doi:10.1038/s42005-022-00869-4

Cited by 83 publications

(36 citation statements)

References 98 publications

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“…[ 130–151 ] BG engineering has also been utilized to harvest mechanical energy carried by sound/vibration using a planar metamaterial endowed with subwavelength BG, and where a structural defect is introduced to allow for the existence of mechanical cavity modes at frequencies inside the BG. [ 152–160 ] For example, when an impinging sound wave reaches the metamaterial panel, it excites the phononic cavity modes with highly confined strain energy density, its energy can then be harvested using a piezoelectric material inside the defect. Moreover, PnCs have also served as an exotic platform for mimicking quantum phenomena in condensed matter physics, especially since the discovery of topological insulators.…”

Section: Introductionmentioning

confidence: 99%

Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review

Oudich

Gerard

Deng

et al. 2022

Adv Funct Materials

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In solid state physics, a bandgap (BG) refers to a range of energies where no electronic states can exist. This concept was extended to classical waves, spawning the entire fields of photonic and phononic crystals where BGs are frequency (or wavelength) intervals where wave propagation is prohibited. For elastic waves, BGs are found in periodically alternating mechanical properties (i.e., stiffness and density). This gives birth to phononic crystals and later elastic metamaterials that have enabled unprecedented functionalities for a wide range of applications. Planar metamaterials are built for vibration shielding, while a myriad of works focus on integrating phononic crystals in microsystems for filtering, waveguiding, and dynamical strain energy confinement in optomechanical systems. Furthermore, the past decade has witnessed the rise of topological insulators, which leads to the creation of elastodynamic analogs of topological insulators for robust manipulation of mechanical waves. Meanwhile, additive manufacturing has enabled the realization of 3D architected elastic metamaterials, which extends their functionalities. This review aims to comprehensively delineate the rich physical background and the state-of-the art in elastic metamaterials and phononic crystals that possess engineered BGs for different functionalities and applications, and to provide a roadmap for future directions of these manmade materials.

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Section: Introductionmentioning

confidence: 99%

Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review

Oudich

Gerard

Deng

et al. 2022

Adv Funct Materials

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“…For a PEH device to act as an effective sensor, it has to be designed with the dual purpose of achieving efficient energy harvesting as well as high sensing accuracy. Although, significant progress has been made in designing efficient PEH from the energy harvesting points of view [8,9,10], little is known about the impact of PEH design parameters, such as its geometrical shapes on its sensing performance. The intent of this work is to explore PEH design spaces to understand the impact of design configurations on both energy harvesting as well as sensing accuracy.…”

Section: Introductionmentioning

confidence: 99%

On the Joint Optimization of Energy Harvesting and Sensing of Piezoelectric Energy Harvesters: Case Study of a Cable-Stayed Bridge

Peralta-Braz¹,

Alamdari²,

Ruiz³

et al. 2022

Preprint

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There is growing evidence that piezoelectric energy harvesters (PEHs) not only generate electricity from vibration sources, but their voltage signals can also be utilized simultaneously to sense various contexts of interest. Little is known, however, about any potential trade-off between its energy harvesting and sensing performances within the design space of the PEH device. Lack of such knowledge prevents optimal design of dual-functional PEH devices that are expected to be used both as a power source and a sensing system. In this paper, using an extensive vibration dataset collected from a real-world cable-stayed bridge, we investigate the simultaneous energy harvesting and vehicle speed sensing performance of PEH devices with varying geometrical shapes. Our results reveal that both energy harvesting efficiency and sensing accuracy depend significantly on the shape of the PEH, and there exist configurations with more favourable harvesting and sensing performances. This finding is expected to open up new opportunities for jointly optimizing energy harvesting and sensing for various types of PEH devices and applications.

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“…Providing an efficient and sustainable power source for these systems without using batteries has become a focus of research [ 5 , 6 ]. There is a multitude of energy in the environment, and vibration energy is one of the most abundant and ubiquitous [ 7 , 8 ]. A piezoelectric harvester that converts the mechanical energy of vibration into electrical energy has been widely studied [ 9 , 10 , 11 ], due to the high power density of piezoelectric materials.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Four Electrical Interfacing Circuits in Frequency Up-Conversion Piezoelectric Energy Harvesting

Chen

Tang

et al. 2022

Micromachines

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Efficiently scavenging piezoelectric vibration energy is attracting a lot of interest. One important type is the frequency up-conversion (FUC) energy harvester, in which a low-frequency beam (LFB) impacts a high-frequency beam (HFB). In this paper, four interface circuits, standard energy harvesting (SEH), self-powered synchronous electric charge extraction (SP-SECE), self-powered synchronized switch harvesting on inductor (SP-SSHI) and self-powered optimized SECE (SP-OSECE), are compared while rectifying the generated piezoelectric voltage. The efficiencies of the four circuits are firstly tested at constant displacement and further analyzed. Furthermore, the harvested power under FUC is tested for different electromechanical couplings and different load values. The results show that SP-OSECE performs best in the case of a weak coupling or low-load resistance, for which the maximum power can be 43% higher than that of SEH. As the coupling level increases, SP-SSHI becomes the most efficient circuit with a 31% higher maximum power compared to that of SEH. The reasons for the variations in each circuit with different coupling coefficients are also analyzed.

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Piezoelectric energy harvesting using mechanical metamaterials and phononic crystals

Cited by 83 publications

References 98 publications

Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review

Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review

On the Joint Optimization of Energy Harvesting and Sensing of Piezoelectric Energy Harvesters: Case Study of a Cable-Stayed Bridge

Comparison of Four Electrical Interfacing Circuits in Frequency Up-Conversion Piezoelectric Energy Harvesting

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