Freestanding piezoelectric rings for high efficiency energy harvesting at low frequency

Massaro, Alessandro; Guido, Stefano; Ingrosso, I.; Cingolani, R.; Vittorio, Massimo De; Cori, Marco; Bertacchini, Alessandro; Larcher, Luca; Passaseo, A.

doi:10.1063/1.3551725

Cited by 37 publications

(25 citation statements)

References 24 publications

(32 reference statements)

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“…In the past several years, some innovative harvester designs have been proposed including an interesting ring design reported by Massaro et al in 2011 ( Figure 5). 24 The socalled ring-MEMS (RMEMS) structure was fabricated by etching away a substrate layer underneath a strip of aluminum nitride (AlN) thin film. The large residual stress within the layered structure caused the AlN strip to roll up, forming the RMEMS structure.…”

Section: Other Configurationsmentioning

confidence: 99%

Energy harvesting from low frequency applications using piezoelectric materials

Tian

Deng

2014

Applied Physics Reviews

546

340

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In an effort to eliminate the replacement of the batteries of electronic devices that are difficult or impractical to service once deployed, harvesting energy from mechanical vibrations or impacts using piezoelectric materials has been researched over the last several decades. However, a majority of these applications have very low input frequencies. This presents a challenge for the researchers to optimize the energy output of piezoelectric energy harvesters, due to the relatively high elastic moduli of piezoelectric materials used to date. This paper reviews the current state of research on piezoelectric energy harvesting devices for low frequency (0-100 Hz) applications and the methods that have been developed to improve the power outputs of the piezoelectric energy harvesters. Various key aspects that contribute to the overall performance of a piezoelectric energy harvester are discussed, including geometries of the piezoelectric element, types of piezoelectric material used, techniques employed to match the resonance frequency of the piezoelectric element to input frequency of the host structure, and electronic circuits specifically designed for energy harvesters.

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Section: Other Configurationsmentioning

confidence: 99%

Energy harvesting from low frequency applications using piezoelectric materials

Tian

Deng

2014

Applied Physics Reviews

546

340

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“…[12][13][14][15][16][17] The ambient vibration (e.g. vibration of civil engineering structure and heavy machinery) is always stochastic, intermittent, and mainly distributes in the low frequency (<100Hz), 18,19 which usually appear as broad peaks rather than sharp ones when reflected in the spectrum. While most of the cantilever's natural frequencies lie in a narrow frequency range.…”

Section: Introductionmentioning

confidence: 99%

Low-frequency and wideband vibration energy harvester with flexible frame and interdigital structure

Liu

Wang

et al. 2015

AIP Advances

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A utility piezoelectric energy harvester with low frequency and high-output voltage: Theoretical model, experimental verification and energy storage AIP Advances 6, 095208 (2016) As an alternative to traditional cantilever beam structures and their evolutions, a flexible beam based, interdigital structure, vibration energy harvester has been presented and investigated. The proposed interdigital-shaped oscillator consists of a rectangular flexible frame and series of cantilever beams interdigitally bonded to it. In order to achieve low frequency and wide-bandwidth harvesting, Young's modulus of materials, frame size and the amount of the cantilevers have been studied systematically. The measured frequency responses of the designed device (PDMS frame, quintuple piezoelectric cantilever beams) show a 460% increase in bandwidth below 80Hz. When excited at an acceleration of 1.0 g, the energy harvester achieves to a maximum open-circuit voltage of 65V, and the maximum output power 4.5 mW. C 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

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“…The AlN thin film could be grown on a substrate consisting of a thin SiO 2 sacrificial layer and growth by a radio frequency (RF) sputtering technique. A complete energy-harvesting experimental setup based on vibrational forces should consider a controlled shaker and by a lock-in-amplifier (Massaro et al 2011) and a matched load at the output of the energy harvesting device. In addition, the maximum displacement of the piezoelectric cantilever due to an applied voltage could be measured by an image postprocessing method using a camera coupled to a microscope.…”

Section: Characterization Of Small Piezoelectric Devicesmentioning

confidence: 99%

“…Thus, the tuning of the material properties can be performed by controlling the filler generation. With respect to the optical properties, gold (Au) nanoparticles generated by a chemical reduction in PDMS (by means of a HAuCl 4 gold precursor) facilitate light coupling between a tapered optical fiber and a PDMS-Au NM deposited on the core surface (Massaro et al 2011). …”

Section: Introduction To Nanocomposite Materialsmentioning

confidence: 99%

Optical Waveguiding and Applied Photonics

Lay-Ekuakille

2013

Lecture Notes in Nanoscale Science and Technology

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Freestanding piezoelectric rings for high efficiency energy harvesting at low frequency

Cited by 37 publications

References 24 publications

Energy harvesting from low frequency applications using piezoelectric materials

Energy harvesting from low frequency applications using piezoelectric materials

Low-frequency and wideband vibration energy harvester with flexible frame and interdigital structure

Optical Waveguiding and Applied Photonics

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