Long-Term Stability of Ferroelectret Energy Harvesters
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Electrical and Computer Engineering Department, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
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Mechanical and Mechatronics Engineering Department, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
3
Mechanical Engineering Department, Kirikkale University, 71450 Kirikkale, Turkey
4
Systems Design Engineering Department, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
*
Author to whom correspondence should be addressed.
Materials 2020, 13(1), 42; https://doi.org/10.3390/ma13010042
Received: 19 November 2019
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Revised: 9 December 2019
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Accepted: 17 December 2019
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Published: 20 December 2019
(This article belongs to the Section Electronic Materials)
Cellular polypropylene (PP) has been recently used in energy harvesting applications. In this work, we investigate its viability and long-term stability under various operating conditions. Specifically, the effect of constant stress and stress cycling on output power and long-term stability of ferroelectret energy harvesters is analyzed. Our findings show that after 112 days constant stress significantly increases the piezoelectric charge constant and output power from 0.51 μW for a stress-free harvester to 2.71 μW. It also increases the harvester center frequency from 450 to 700 Hz and decreases its optimal resistance from 7 to 5.5 M .
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Keywords:
energy harvesters; ferroelectret; piezoelectric
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MDPI and ACS Style
Kayaharman, M.; Das, T.; Seviora, G.; Saritas, R.; Abdel-Rahman, E.; Yavuz, M. Long-Term Stability of Ferroelectret Energy Harvesters. Materials 2020, 13, 42. https://doi.org/10.3390/ma13010042
AMA Style
Kayaharman M, Das T, Seviora G, Saritas R, Abdel-Rahman E, Yavuz M. Long-Term Stability of Ferroelectret Energy Harvesters. Materials. 2020; 13(1):42. https://doi.org/10.3390/ma13010042
Chicago/Turabian StyleKayaharman, Muhammed, Taylan Das, Gregory Seviora, Resul Saritas, Eihab Abdel-Rahman, and Mustafa Yavuz. 2020. "Long-Term Stability of Ferroelectret Energy Harvesters" Materials 13, no. 1: 42. https://doi.org/10.3390/ma13010042
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