Anisotropic self-biased dual-phase low frequency magneto-mechano-electric energy harvesters with giant power densities

We report the physical behavior of self-biased multi-functional magneto-mechano-electric (MME) laminates simultaneously excited by magnetic and/or mechanical vibrations. The MME laminates composed of Ni and single crystal fiber composite exhibited strong ME coupling under H dc = 0 Oe at both low fre...

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Bibliographic Details
Published in:APL materials 2014-04, Vol.2 (4), p.046102-046102-8
Main Authors: Patil, Deepak Rajaram, Zhou, Yuan, Kang, Ju-Eun, Sharpes, Nathan, Jeong, Dae-Yong, Kim, Yang-Do, Kim, Kee Hoon, Priya, Shashank, Ryu, Jungho
Format: Article
Language:English
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Summary:We report the physical behavior of self-biased multi-functional magneto-mechano-electric (MME) laminates simultaneously excited by magnetic and/or mechanical vibrations. The MME laminates composed of Ni and single crystal fiber composite exhibited strong ME coupling under H dc = 0 Oe at both low frequency and at resonance frequency. Depending on the magnetic field direction with respect to the crystal orientation, the energy harvester showed strong in-plane anisotropy in the output voltage and was found to generate open circuit output voltage of 20 Vpp and power density of 59.78 mW/Oe2 g2 cm3 under weak magnetic field of 1 Oe and mechanical vibration of 30 mg, at frequency of 21 Hz across 1 MΩ resistance.
ISSN:2166-532X
2166-532X
DOI:10.1063/1.4870116