A flexible, sandwich structure piezoelectric energy harvester using PIN-PMN-PT/epoxy 2-2 composite flake for wearable application

doi:10.1016/j.sna.2017.07.059

	A flexible, sandwich structure piezoelectric energy harvester using PIN-PMN-PT/epoxy 2-2 composite flake for wearable application
	Zeng, Zhou 1,2; Gai, Linlin 1,2; Petitpas, Arnaud 3; Li, Yue 1,4; Luo, Haosu 1; Wang, Dong 1; Zhao, Xiangyong 4
刊名	Sensors and Actuators, A: Physical
	2017
卷号	265 页码:62-69
ISSN号	09244247
DOI	10.1016/j.sna.2017.07.059
英文摘要	Unlike the nano-generators whose piezoelectric materials in forms of particles, fibers and thin film, we present a sandwich structure flexible energy harvester using a high performance bulk form PIMNT/epoxy 2-2 composite flake (epoxy volume ratio of 20%). The device consists of a polyethylene terephthalate (PET) substrate, a PIN-PMN-PT single crystal/epoxy 2-2 composite flake (a thickness of 50 mm), an interdigital electrodes (IDEs) film and a PET cover, which is flexible enough to harvest energy from large deformation biomechanical movements. A theoretical analysis shows that the sandwich structure with composite in the middle layer contributes to the flexibility of the device and high performance bulk PIN-PMN-PT results in its high electrical output. Electrical properties of the device under different strains (bending radius), strain rates, electrode gaps and load resistances are studied systematically. Experimental results show that the device can withstand a small bending radius of 2.2 cm, where an open-circuit of 54.2 V and extrapolation current of 6.7 μA were acquired across a device area of 480 mm2. The instantaneous power reach as high as 105 μW and can maintain its performance after 40000 bending-unbending cycles. We have also used the device to harvest the mechanical energy from motions of human knees and light up 12 red LEDs successfully. High flexibility and excellent electrical output demonstrate the promise of the device in biomechanical motions energy harvesting for self-powered wireless and portable low-power electronics. © 2017 Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25712]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Key Laboratory of Inorganic Functional Material and Device, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 201800, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China; 3.Faculty of Sciences and Technologies, University of La Rochelle, La Rochelle; 17000, France; 4.Key Laboratory of Optoelectronic Material and Device, Shanghai Normal University, Shanghai; 200234, China
推荐引用方式 GB/T 7714	Zeng, Zhou,Gai, Linlin,Petitpas, Arnaud,et al. A flexible, sandwich structure piezoelectric energy harvester using PIN-PMN-PT/epoxy 2-2 composite flake for wearable application[J]. Sensors and Actuators, A: Physical,2017,265:62-69.
APA	Zeng, Zhou.,Gai, Linlin.,Petitpas, Arnaud.,Li, Yue.,Luo, Haosu.,...&Zhao, Xiangyong.(2017).A flexible, sandwich structure piezoelectric energy harvester using PIN-PMN-PT/epoxy 2-2 composite flake for wearable application.Sensors and Actuators, A: Physical,265,62-69.
MLA	Zeng, Zhou,et al."A flexible, sandwich structure piezoelectric energy harvester using PIN-PMN-PT/epoxy 2-2 composite flake for wearable application".Sensors and Actuators, A: Physical 265(2017):62-69.