Energy harvesting textiles for a rainy day:woven piezoelectrics based on melt-spun PVDF microfibres with a conducting core
作者机构：Department of Chemistry and Chemical EngineeringChalmers University of TechnologyGöteborg 41296Sweden The Swedish School of TextilesUniversity of BorasBoras 50190Sweden Department of MaterialsSwerea IVFBox 104Mölndal 43122Sweden Department of Industrial and Materials ScienceChalmers University of TechnologyGoteborg 41296Sweden
出 版 物：《npj Flexible Electronics》 (npj-柔性电子（英文）)
年 卷 期：2018年第2卷第1期
页 面：67-75页
核心收录：
学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学]
基 金：research engineer Roger Sagdahl,Chalmers University of Technology,for valuable discussions on energy harvesting.CHESS(supported by the NSF&NIH/NIGMS via NSF award DMR-1332208)is gratefully acknowledged for providing experimental time for WAXS measurements Financial support from the Swedish Foundation for Strategic Research(SSF)through grant no.SBE13-0086 the Knut and Alice Wallenberg Foundation through a Wallenberg Academy Fellowship the European Research Council(ERC)under grant agreement no.637624 is gratefully acknowledged
主 题：piezoelectric harvesting electrode
摘 要：Recent advances in ubiquitous low-power electronics call for the development of light-weight and flexible energy *** textile format is highly attractive for unobtrusive harvesting of energy from e.g.,biomechanical ***,we report the manufacture and characterisation of fully textile piezoelectric generators that can operate under wet *** use a weaving loom to realise textile bands with yarns of melt-spun piezoelectric microfibres,that consist of a conducting core surrounded byβ-phase poly(vinylidene fluoride)(PVDF),in the warp *** core-sheath constitution of the piezoelectric microfibres results in a—for electronic textiles—unique *** inner electrode is fully shielded from the outer electrode(made up of conducting yarns that are integrated in the weft direction)which prevents shorting under wet *** a result,and in contrast to other energy harvesting textiles,we are able to demonstrate piezoelectric fabrics that do not only continue to function when in contact with water,but show enhanced *** piezoelectric bands generate an output of several volts at strains below one *** show that integration into the shoulder strap of a laptop case permits the continuous generation of four microwatts of power during a brisk *** promising performance,combined with the fact that our solution uses scalable materials and well-established industrial manufacturing methods,opens up the possibility to develop wearable electronics that are powered by piezoelectric textiles.
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