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Self-biased Dual-phase Energy Harvesting System

Published online by Cambridge University Press:  25 June 2013

Yuan Zhou ,
Amar Bhalla  and
Shashank Priya
Yuan Zhou*
Affiliation:
Bio-inspired Materials and Devices Laboratory (BMDL) Center for Energy Harvesting Materials and Systems (CEHMS) Virginia Tech, Blacksburg, VA 24061, USA
Amar Bhalla
Affiliation:
Department of Electrical Engineering, University of Texas at San Antonio, TX.
Shashank Priya
Affiliation:
Bio-inspired Materials and Devices Laboratory (BMDL) Center for Energy Harvesting Materials and Systems (CEHMS) Virginia Tech, Blacksburg, VA 24061, USA
*
*Corresponding Author: Yuan Zhou, yzhou6@vt.edu
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Abstract

In this study, we report the design and fabrication of a dual-phase energy harvester which can synchronously harvest both mechanical and magnetic energy in the absence of DC magnetic field. The harvester consists of a magnetostrictive cantilever beam and a magnetostrictive/ piezoelectric (M/P) self-biased laminate composite structure. This structure allows us to utilize piezoelectric and self-biased magnetoelectric effect simultaneously. By combining these mechanisms together, a sum effect for harvesting both magnetic and vibration energy was realized under DC magnetic field free condition. The bilayer structure provides a simplified geometry that can be easily incorporated into MEMS devices. We demonstrate a hybrid synthesis method for fabrication of complex three-dimensional thin films using a cost-effective and mask-less aerosol jet deposition process. The combination of the hybrid aerosol jet process with dual phase harvester design provides the opportunity to fabricate small scale power sources required for structural health monitoring applications.

Keywords

devicespiezoelectricenergy generation
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1556: Symposium W – Piezoelectric Nanogenerators and Piezotronics , 2013 , mrss13-1556-w01-03
Copyright
Copyright © Materials Research Society 2013 

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References

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