Dual-phase self-biased magnetoelectric energy harvester

Yuan Zhou, Daniel J. Apo, Shashank Priya

Research output: Contribution to journalArticle

52 Scopus citations

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 languageEnglish (US)
Article number192909
JournalApplied Physics Letters
Volume103
Issue number19
DOIs
StatePublished - Nov 4 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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