RETRACTED: Enhanced flexible piezoelectric generating performance via high energy composite for wireless sensor network (Retracted article. See vol. 189, 2019)
- Authors
- Kim, Kyung-Bum; Cho, Jae Yong; Jeon, Deok Hwan; Ahn, Jung Hwan; Hong, Seong Do; Jeong, Young-Hun; Nahm, Sahn; Sung, Tae Hyun
- Issue Date
- 15-9월-2018
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Piezoelectric energy harvester; Wireless sensor network; Temperature monitoring; Flexible device; Sustainable energy; Self-powered system
- Citation
- ENERGY, v.159, pp.196 - 202
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENERGY
- Volume
- 159
- Start Page
- 196
- End Page
- 202
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/73095
- DOI
- 10.1016/j.energy.2018.06.048
- ISSN
- 0360-5442
- Abstract
- Piezoelectric 0.72 Pb(Zr0.47Ti0.53)O-3-0.28 Pb[(Zn0.45Ni0.55)(1/3)Nb-2/3]O-3 + 0.5 mol% CuO (PNNC) particles were made for use in a composite of flexible energy harvester (FEH) that can convert sustainable mechanical deformation into electrical energy. The PNNC particles with a high transduction coefficient (d33 x g33) were mixed with polydimethylsiloxane (PDMS) matrix to produce the FEH. The FEH generated maximum output voltage of 55.24 V and current density of 2.76 mu A/cm(2) (power density: 554 mu W/cm(3), 3.2 mW) at the resonance frequency of 11?Hz. The energy conversion efficiency of about 20.7% has been achieved. The developed energy harvester is demonstrated in the self-powered wireless sensor node application in which the FEH spontaneously generated stable power under continuous mechanical stress. (C) 2018 Elsevier Ltd. All rights reserved.
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