Enhanced Energy Harvesting Using Multilayer Piezoelectric Ceramics
- Authors
- Patel, Satyanarayan; Seo, In-Tae; Nahm, Sahn
- Issue Date
- 11월-2019
- Publisher
- SPRINGER
- Keywords
- Piezoelectrics; multilayer; energy harvesting
- Citation
- JOURNAL OF ELECTRONIC MATERIALS, v.48, no.11
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF ELECTRONIC MATERIALS
- Volume
- 48
- Number
- 11
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/62107
- DOI
- 10.1007/s11664-019-07501-2
- ISSN
- 0361-5235
- Abstract
- In this work, multi-layer ceramics (MLC) are fabricated for vibrational energy harvesting using 0.5 mol.% CuO added 0.69Pb(Zr0.47Ti0.53)O-3-0.31Pb(Zn0.4Ni0.6)(1/3)Nb2/3O3 (0.5CPZT-PZNN). 0.5CPZT-PZNN has a high transduction coefficient of 20,367 m(2)/N with a high Curie temperature of 300 degrees C. The effect of the number of layers (n-layers = 1, 3, 5 and 7) on the active power density is systematically investigated. MLC-based piezoelectric energy harvesting (PEH) can increase the active power output by approximately 2.5 times as compared to bulk PEH (n = 1). For the bulk ceramic, PEH active power density is found to be 21 mW/cm(3) , whereas maximum active power density is obtained for n = 5 (49.7 mW/cm(3)). However, upon increasing layers (n = 7), active power density is decreased due to high capacitance. The result shows that the MLC-based PEH can increase output current/voltage and decrease the matching resistive load. In addition, effect of the load resistance on the voltage, current and active power density is also discussed. Finally, a comparison of various piezoelectric material based power output in MLC-system has been also presented.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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