Cited 5 time in webofscience Cited 6 time in scopus

Highly Twisted Supercoils for Superelastic Multi-functional Fibres

Title
Highly Twisted Supercoils for Superelastic Multi-functional Fibres
Authors
Son, WonkyeongChun, SungwooLee, Jae MyeongLee, YourackPark, JeongminSuh, DongseokLee, Duck WeonJung, HachulKim, Young-jinKim, YounghoonJeong, Soon MoonLim, Sang KyooChoi, Changsoon
DGIST Authors
Kim, YounghoonJeong, Soon MoonLim, Sang KyooChoi, Changsoon
Issue Date
2019-01
Citation
Nature Communications, 10(1)
Type
Article
Article Type
Article
ISSN
2041-1723
Abstract
Highly deformable and electrically conductive fibres with multiple functionalities are needed for diverse applications. Here we report on a supercoil structure (coiling of a coil) of fibresfabricated by inserting a giant twist into spandex core fibres wrapped in a carbon nanotube sheath. The resulting supercoiled fibres show a highly ordered and compact structure along the fibre direction, which can sustain up to 1,500% elastic deformation. The supercoiled fibre exhibits an increase in resistance of 4.2% for stretching of 1,000% when overcoated by a passivation layer. Moreover, by incorporating pseudocapacitiveactive materials, we demonstrate the existence of superelastic supercapacitors with high linear and areal capacitance values (21.7 mF cm-1, and 92.1 mF cm-2, respectively) that can reversibly stretched by 1,000% without significant capacitance loss. The supercoiled fibre can also function as an electrothermal artificial muscle contracting a 4.2% (% of loaded fibre length) when 0.45 V mm-1 is applied.
URI
http://hdl.handle.net/20.500.11750/9569
DOI
10.1038/s41467-018-08016-w
Publisher
Nature Publishing Group
Related Researcher
Files:
Collection:
Convergence Research Center for Solar Energy1. Journal Articles
Smart Textile Convergence Research Group1. Journal Articles


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