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

Deepak Rajaram Patil, Yuan Zhou, Ju Eun Kang, Nathan Sharpes, Dae Yong Jeong, Yang Do Kim, Kee Hoon Kim, Shashank Priya, Jungho Ryu

Research output: Contribution to journalArticle

37 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article number046102
JournalAPL Materials
Volume2
Issue number4
DOIs
StatePublished - Apr 2014

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

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    Patil, D. R., Zhou, Y., Kang, J. E., Sharpes, N., Jeong, D. Y., Kim, Y. D., Kim, K. H., Priya, S., & Ryu, J. (2014). Anisotropic self-biased dual-phase low frequency magneto-mechano-electric energy harvesters with giant power densities. APL Materials, 2(4), [046102]. https://doi.org/10.1063/1.4870116