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High-sensitivity acoustic sensors from nanofibre webs

Lang, Chenhong, Fang, Jian, Shao, Hao, Ding, Xin and Lin, Tong 2016, High-sensitivity acoustic sensors from nanofibre webs, Nature communications, vol. 7, Article number : 11108, pp. 1-7, doi: 10.1038/ncomms11108.

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Title High-sensitivity acoustic sensors from nanofibre webs
Author(s) Lang, Chenhong
Fang, Jian
Shao, Hao
Ding, Xin
Lin, TongORCID iD for Lin, Tong orcid.org/0000-0002-1003-0671
Journal name Nature communications
Volume number 7
Season Article number : 11108
Start page 1
End page 7
Total pages 7
Publisher Springer
Place of publication Berlin, Germany
Publication date 2016
ISSN 2041-1723
Keyword(s) Physical sciences
Materials science
Nano technology
Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
OF-THE-ART
ENERGY-CONVERSION
NANOGENERATOR
PERFORMANCE
MICROPHONE
GENERATOR
ARRAYS
Summary Considerable interest has been devoted to converting mechanical energy into electricity using polymer nanofibres. In particular, piezoelectric nanofibres produced by electrospinning have shown remarkable mechanical energy-to-electricity conversion ability. However, there is little data for the acoustic-to-electric conversion of electrospun nanofibres. Here we show that electrospun piezoelectric nanofibre webs have a strong acoustic-to-electric conversion ability. Using poly(vinylidene fluoride) as a model polymer and a sensor device that transfers sound directly to the nanofibre layer, we show that the sensor devices can detect low-frequency sound with a sensitivity as high as 266 mV Pa(-1). They can precisely distinguish sound waves in low to middle frequency region. These features make them especially suitable for noise detection. Our nanofibre device has more than five times higher sensitivity than a commercial piezoelectric poly(vinylidene fluoride) film device. Electrospun piezoelectric nanofibres may be useful for developing high-performance acoustic sensors.
Language eng
DOI 10.1038/ncomms11108
Field of Research 091205 Functional Materials
091209 Polymers and Plastics
MD Multidisciplinary
Socio Economic Objective 860406 Synthetic Fibres
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Springer
Persistent URL http://hdl.handle.net/10536/DRO/DU:30083670

Document type: Journal Article
Collection: Institute for Frontier Materials
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Created: Wed, 25 May 2016, 10:38:02 EST

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