High-efficiency piezoelectric micro harvester for collecting low-frequency mechanical energy

doi:10.1088/0957-4484/27/48/485402

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 微纳制造与系统集成研究中心

	High-efficiency piezoelectric micro harvester for collecting low-frequency mechanical energy
	Li, Xin1 ; Song, Jinhui 2; Feng, Shuanglong1 ; Xie, Xiong 1; Li, Zhenhu1 ; Wang, Liang1 ; Pu, Yayun 1; Soh, Ai Kah 3; Shen, Jun 4; Lu, Wenqiang1
刊名	NANOTECHNOLOGY
	2016-12-02
卷号	27 期号:48 页码:9
关键词	piezoelectric-driven harvester ZnO nanorods metacapacitor low-frequency mechanical energy harvest wearable electronics
ISSN号	0957-4484
DOI	10.1088/0957-4484/27/48/485402
通讯作者	Lu, WQ (reprint author), Chinese Acad Sci, Chongqing Key Lab Multiscale Mfg Technol, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China.
英文摘要	A single-layer zinc oxide (ZnO) nanorod array-based micro energy harvester was designed and integrated with a piezoelectric metacapacitor. The device presents outstanding low-frequency (1-10 Hz) mechanical energy harvesting capabilities. When compared with conventional pristine ZnO nanostructured piezoelectric harvesters or generators, both open-circuit potential and shortcircuit current are significantly enhanced (up to 3.1 V and 124 nA cm(-2)) for a single mechanical knock (similar to 34 kPa). Higher electromechanical conversion efficiency (1.3 pC/Pa) is also observed. The results indicate that the integration of the piezoelectric metacapacitor is a crucial factor for improving the low-frequency energy harvesting performance. A double piezoelectric-driven mechanism is proposed to explain current higher output power, in which the metacapacitor plays the multiple roles of charge pumping, storing and transferring. An as-fabricated prototype device for lighting an LED demonstrates high power transference capability, with over 95% transference efficiency to the external load.
资助项目	program for Chongqing Funds for Distinguished Young Scientists[CSTC2013JCYJJQ50001] ; Major Program for Application & Development of Chongqing[CSTC2013YYKFC50008] ; program of Hundred talents of Chinese Academy of Sciences[R52A261Z10] ; Fundamental and advanced technology Research Funds of Chongqing[cstc2015jcyjbx0103] ; West Light Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation of China[51402290] ; Ministry of Science, Technology and Innovation (MOSTI), Malaysia[06-02-10-SF0195]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000388006900001
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/448]
专题	微纳制造与系统集成研究中心
通讯作者	Lu, Wenqiang
作者单位	1.Chinese Acad Sci, Chongqing Key Lab Multiscale Mfg Technol, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 2.Univ Alabama, Coll Engn, Tuscaloosa, AL 35401 USA 3.Monash Univ Malaysia, Sch Engn, Bandar Sunway, Salangor, Malaysia 4.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
推荐引用方式 GB/T 7714	Li, Xin,Song, Jinhui,Feng, Shuanglong,et al. High-efficiency piezoelectric micro harvester for collecting low-frequency mechanical energy[J]. NANOTECHNOLOGY,2016,27(48):9.
APA	Li, Xin.,Song, Jinhui.,Feng, Shuanglong.,Xie, Xiong.,Li, Zhenhu.,...&Liu, Shuangyi.(2016).High-efficiency piezoelectric micro harvester for collecting low-frequency mechanical energy.NANOTECHNOLOGY,27(48),9.
MLA	Li, Xin,et al."High-efficiency piezoelectric micro harvester for collecting low-frequency mechanical energy".NANOTECHNOLOGY 27.48(2016):9.