Highly twisted supercoils for superelastic multi-functional fibresopen access
- Authors
- Son, W[Son, Wonkyeong]; Chun, S[Chun, Sungwoo]; Lee, JM[Lee, Jae Myeong]; Lee, Y[Lee, Yourack]; Park, J[Park, Jeongmin]; Suh, D[Suh, Dongseok]; Lee, DW[Lee, Duck Weon]; Jung, H[Jung, Hachul]; Kim, YJ[Kim, Young-Jin]; Kim, Y[Kim, Younghoon]; Jeong, SM[Jeong, Soon Moon]; Lim, SK[Lim, Sang Kyoo]; Choi, C[Choi, Changsoon]
- Issue Date
- 25-Jan-2019
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- NATURE COMMUNICATIONS, v.10, no.1
- Indexed
- SCIE
SCOPUS
- Journal Title
- NATURE COMMUNICATIONS
- Volume
- 10
- Number
- 1
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/11271
- DOI
- 10.1038/s41467-018-08016-w
- ISSN
- 2041-1723
- Abstract
- Highly deformable and electrically conductive fibres with multiple functionalities may be useful for diverse applications. Here we report on a supercoil structure (i.e. coiling of a coil) of fibres fabricated 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 pseudocapacitive-active materials, we demonstrate the existence of superelastic supercapacitors with high linear and areal capacitance values of 21.7 mF cm(-1) and 92.1 mF cm(-2), respectively, that can be reversibly stretched by 1,000% without significant capacitance loss. The supercoiled fibre can also function as an electrothermal artificial muscle, contracting 4.2% (percentage of loaded fibre length) when 0.45 V mm(-1) is applied.
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- Appears in
Collections - Graduate School > SKKU Advanced Institute of Nano Technology > 1. Journal Articles
- Graduate School > Energy Science > 1. Journal Articles
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