Thermal and mechanical energy harvesting using piezoelectric ceramics

The field of energy harvesting has drawn an increased amount of interest due to the rapid development of wireless sensors and self-powered devices. Currently, there is limited information regarding the impact of coupling both thermal and mechanical excitations in a single material and its energy har...

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Bibliographic Details
Published in:Materials research express 2019-02, Vol.6 (2), p.25701
Main Authors: Chavez, Luis A, Elicerio, Victor F, Regis, Jaime E, Kim, Hoejin, Garcia Rosales, Carlos A, Love, Norman D, Lin, Yirong
Format: Article
Language:English
Subjects:
energy harvesting
hybrid energy harvesting
load optimization
Materials Science
piezoelectric
pyroelectric
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Summary:The field of energy harvesting has drawn an increased amount of interest due to the rapid development of wireless sensors and self-powered devices. Currently, there is limited information regarding the impact of coupling both thermal and mechanical excitations in a single material and its energy harvesting capabilities. This paper demonstrates the use of Lead Zirconate Titanate (PZT) as a coupled thermal and mechanical energy harvesting device. PZT ceramic was subjected to different thermal and mechanical loading conditions. Under pure mechanical cycling the sample consistently generated the least power output averaging less than 200 nW. An increase in power output was observed under mechanical cycling and higher temperatures. A peak power of 500 nW was seen under both, thermal cycling, as well as under coupled thermal-mechanical cycling. This study demonstrated the feasibility to harvest different waste energies from a single device.
ISSN:2053-1591
2053-1591
DOI:10.1088/2053-1591/aaef09