Open AccessAnisotropic self-biased dual-phase low frequency magneto-mechano-electric energy harvesters with giant power densities
Author(s) -
Deepak R. Patil,
Yuan Zhou,
Ju-Eun Kang,
Nathan Sharpes,
DaeYong Jeong,
Young Do Kim,
Kee Hoon Kim,
Shashank Priya,
Jungho Ryu
Publication year - 2014
Publication title -
apl materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.571
H-Index - 60
ISSN - 2166-532X
DOI - 10.1063/1.4870116
Subject(s) - materials science , anisotropy , magneto , vibration , voltage , magnetic field , nuclear magnetic resonance , phase (matter) , magnetic anisotropy , coupling (piping) , condensed matter physics , composite material , acoustics , electrical engineering , optics , physics , magnetization , quantum mechanics , engineering
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 Hdc = 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
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