A PMN-PT/PDMS vibrational energy harvester: Modeling and experiments

Alex Mathers, Kee Moon, Jingang Yi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In this paper, we present design, modeling analysis, and experimental study of a vibration-based energy harvester. The energy harvester is made of a composite cantilever of a single crystal relaxor ferroelectric material (PMN-PT), and a polydimethyl-siloxane (PDMS) base layer. A PDMS proof mass is constructed at the tip of the composite cantilever beam. The use of the PMN-PT piezo-material and an interdigited electrodes (IDE) design improves the energy conversion efficiency. The PDMS base layer prevents the possible damage to the fragile PMN-PT layer. A dynamic systems approach is employed to analyze the responses and the performance of the harvester design. The experiments have demonstrated that a prototype of the harvester with a size of 7.4 mm × 2 mm × 110 μm can produce a maximum output voltage of 10 V (0.3 mW power) under a vibration excitation with a peak-to-peak amplitude of 1 mm, and the power density can reach 4.15 mW/cm3 under short circuit conditions.

Original languageEnglish (US)
Title of host publication2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008
Pages621-628
Number of pages8
EditionPART A
StatePublished - 2009
Externally publishedYes
Event2008 ASME Dynamic Systems and Control Conference, DSCC 2008 - Ann Arbor, MI, United States
Duration: Oct 20 2008Oct 22 2008

Publication series

Name2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008
NumberPART A

Other

Other2008 ASME Dynamic Systems and Control Conference, DSCC 2008
CountryUnited States
CityAnn Arbor, MI
Period10/20/0810/22/08

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

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