Wide-bandwidth piezoelectric energy harvester integrated with parylene-C beam structures

Huang, Po‐Cheng; Tsai, Tung-Hsiang; Yang, Yao‐Joe

doi:10.1016/j.mee.2013.03.158

Cited by 25 publications

(15 citation statements)

References 21 publications

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“…Similarly, Huang et al. describe a MEMS piezoelectric ambient energy harvesting device based on silicon proof‐mass with four parylene‐C beam structures and a piezoelectric PVDF layer. To achieve a wide‐frequency range between 200 and 600 Hz, the piezoelectric film is bonded with the beam structure to get tensile stretching strain.…”

Section: Rationalization For Ambient Energy Harvestingmentioning

confidence: 99%

“…For example, Wacharasindhu and Kwon [63] developed an integrated micromachined electromagnetic and piezoelectric energy harvester capable of generating a maximum power of 40.8 lW across 3 MO resistance for the piezoelectric element, and up to 11.6 pW across a 700 O for electromagnetic element. Similarly, Huang et al [65] describe a MEMS piezoelectric ambient energy harvesting device based on silicon proof-mass with four parylene-C beam structures and a piezoelectric PVDF layer. To achieve a wide-frequency range between 200 and 600 Hz, the piezoelectric film is bonded with the beam structure to get tensile stretching strain.…”

Section: Piezoelectric Materials Modules/prototypes For Energy Harvesmentioning

confidence: 99%

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Energy harvesting for assistive and mobile applications

Bhatnagar¹,

Owende²

2015

Energy Science & Engineering

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Technology advances have enabled modification of the size and shape of the electronic components to the microscale, with commensurate scaling down of their power requirements to milliwatts and microwatt range. Consequently, many complex electronic systems and devices such as wearable medical and autonomous devices consume power in the range less than 200 lW, and wireless sensor networks in the range lW to 100 mW are operated on battery power. Due to the salient limitations of battery power, such as longevity of charge and where applicable, the requirement for periodic recharging, possibilities for utilization of autonomous energy sources is critical for operation of such devices. Ambient energy sources, such as vibrations (1 lW to 20 mW), motion (wide range in power outputs), temperature gradient (0.5-10 mW), radiofrequency waves (>180 lW/cm 2 ), light (100 lW/cm 2 to 100 mW/cm 2 ), acoustics (0.003-0.11 lW/cm 2 ), and many other, have the potential to directly power the electronic device. Ambient energy harvesting, when used separately or in conjunction with batteries, will enhance the longevity of equipment operations requiring portable or autonomous power supply. This paper reviews the state of the art in energy-harvesting techniques, power conversion, and characterization of mini-and microscale self-sustaining power generation systems in the range 600 lW to 5 W, specifically focusing on low-power system applications, for personal assistive and mobile technology devices.

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Section: Rationalization For Ambient Energy Harvestingmentioning

confidence: 99%

Section: Piezoelectric Materials Modules/prototypes For Energy Harvesmentioning

confidence: 99%

Energy harvesting for assistive and mobile applications

Bhatnagar¹,

Owende²

2015

Energy Science & Engineering

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“…Furthermore,f or harvesting ample energy over aw ide band of frequencies, many researchers have introduced nonlinear generators whereby nonlinear stiffness effects are used to increase the operating range. [16][17][18][19][20][21][22][23] Then onlinear energy harvester can take the form of abistable oscillator with cubic nonlinear stiffness typically introduced by using magnets. Ferrarie tal.…”

Section: Introductionmentioning

confidence: 99%

Finite‐Element Analysis of a Varying‐Width Bistable Piezoelectric Energy Harvester

Kumar

Chauhan

et al. 2015

Energy Tech

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In this study, a finite‐element analysis of a varying‐width piezoelectric energy harvester (PEH) has been presented. A varying‐width piezoelectric energy harvester (cantilever type) has variation in the width at definite intervals along its length. To harvest the energy over the wide frequency range of environmental vibrations, nonlinearity is introduced in the stiffness by mean of two neodymium magnets. The width of the proposed varying‐width cantilever PEH is calculated using block pulse functions (BPFs). The objective of applying BPFs is to proximate a triangular PEH (with fixed base) into a proposed varying‐width PEH with three rectangular sections along length. The use of BPFs enable the use of rectangular patches of lead zirconate titanate (PZT‐5A). This leads to a reduction in cost as machining PZT at other than straight cuts results in an extensive increase in the production costs. The varying‐width piezoelectric cantilever beam is subjected to harmonic base excitations by applying a vertical acceleration of 0.2 g (g=9.81 m s−2). Numerical study indicates that the bistable varying‐width PEH generates at least two times the average power than that generated by a bistable uniform‐width PEH for the same volume of piezoelectric material and for the same linear natural frequency. Furthermore, the bistable varying‐width PEH is optimized using a genetic algorithm technique to maximize the mean power density.

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“…Moreover, it has a long service life. 4,5 There have been many vibration piezoelectric energy harvesters demonstrated in the literature; the designs of most vibration piezoelectric energy harvesters were based on monospar, 6,7,10 but in fact, the high output and micro-size could not be obtained at the same time. On one hand, the pursuit of high output power leads to the size of the beam that is bigger and bigger.…”

Section: Introductionmentioning

confidence: 99%

Vibration piezoelectric energy harvester with multi-beam

et al. 2015

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Piezoelectric energy harvesting: State-of-the-art and challenges Applied Physics Reviews 1, 031104 (2014) This work presents a novel vibration piezoelectric energy harvester, which is a micro piezoelectric cantilever with multi-beam. The characteristics of the PZT (Pb(Zr 0.53 Ti 0.47 )O 3 ) thin film were measured; XRD (X-ray diffraction) pattern and AFM (Atomic Force Microscope) image of the PZT thin film were measured, and show that the PZT (Pb(Zr 0.53 Ti 0.47 )O 3 ) thin film is highly (110) crystal oriented; the leakage current is maintained in nA magnitude, the residual polarisation Pr is 37.037 µC/cm 2 , the coercive field voltage Ec is 27.083 kV/cm, and the piezoelectric constant d 33 is 28 pC/N. In order to test the dynamic performance of the energy harvester, a new measuring system was set up. The maximum output voltage of the single beam of the multi-beam can achieve 80 Vibration piezoelectric energy harvester with multi-beam

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Wide-bandwidth piezoelectric energy harvester integrated with parylene-C beam structures

Cited by 25 publications

References 21 publications

Energy harvesting for assistive and mobile applications

Energy harvesting for assistive and mobile applications

Finite‐Element Analysis of a Varying‐Width Bistable Piezoelectric Energy Harvester

Vibration piezoelectric energy harvester with multi-beam

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