期刊
NANO ENERGY
卷 14, 期 -, 页码 226-235出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2015.01.038
关键词
Wearable nanogenerators; Triboelectricity; Electrospinning; Polyvinylidene fluoride
类别
资金
- National Natural Science Foundation of China [51473034]
- Specialized Research Fund for the Doctoral Program of Higher Education [20110075130001]
- Science and Technology Commission of Shanghai Municipality [12nm0503900, 13JC1400200]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, Innovative Reasearch Team in University [IRT1221]
- Program of Introducing Talents of Discipline to Universities [111-2-04]
- Chinese Universities Scientific Fund [CUSF-DH-D-2014029]
A simple-to-fabricate, high-performance, wearable all-fiber triboelectric nanogenerator (TENG)-based insole composed of electrospun piezoelectric polyvinylidene fluoride (PVDF) nanofibers sandwiched between a pair of conducting fabric electrodes that effectively harvests energy during human walking is reported. The surface of the nanofibers is roughened with secondary nanostructure to enhance insole performance. The maximum output voltage, instantaneous power and output current from the insole reach 210 V, 2.1 mW and 45 mu A, respectively. The role of the piezoelectric effect in the electrospun PVDF nanofibers in this TENG-based insole is then systematically investigated. This device is shown to be a reliable power source that can be used to light up 214 serially connected light-emitting diodes directly. The soft fiber-based electric power generator demonstrated in this paper is capable of meeting the requirements of wearable devices because of its efficient energy-conversion performance, high durability, user comfort, and low cost. (C) 2015 Elsevier Ltd. All rights reserved.
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