Abstract
We report a magnetoelectric energy harvester structure that can simultaneously scavenge magnetic and vibration energy in the absence of DC magnetic field. The structure consisted of a piezoelectric macro-fiber composite bonded to a Ni cantilever. Large magnetoelectric coefficient ∼50 V/cm Oe and power density ∼4.5 mW/cm3 (1 g acceleration) were observed at the resonance frequency. An additive effect was realized when the harvester operated under dual-phase mode. The increase in voltage output at the first three resonance frequencies under dual-phase mode was found to be 2.4%, 35.5%, and 360.7%. These results present significant advancement toward high energy density multimode energy harvesting system.
Original language | English (US) |
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Article number | 192909 |
Journal | Applied Physics Letters |
Volume | 103 |
Issue number | 19 |
DOIs | |
State | Published - Nov 4 2013 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)