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장지현

Jang, Ji-Hyun
Structures & Sustainable Energy Lab.
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Electroactive 1T-MoS2 Fluoroelastomer Ink for Intrinsically Stretchable Solid-State In-Plane Supercapacitors

Author(s)
Thiyagarajan, KaliannanSong, Woo-JinPark, HyejiSelvaraj, VeerapandianMoon, SungminOh, JoosungKwak, Myung-JunPark, GyeongbaeKong, MinsikPal, MonalisaKwak, JunghyeokGiri, AnupamJang, Ji-HyunPark, SoojinJeong, Unyong
Issued Date
2021-06
DOI
10.1021/acsami.1c01463
URI
https://scholarworks.unist.ac.kr/handle/201301/53974
Fulltext
https://pubs.acs.org/doi/10.1021/acsami.1c01463
Citation
ACS APPLIED MATERIALS & INTERFACES, v.13, no.23, pp.26870 - 26878
Abstract
Full advantage of stretchable electronic devices can be taken when utilizing an intrinsically stretchable power source. High-performance stretchable supercapacitors with a simple structure and solid-state operation are good power sources for stretchable electronics. This study suggests a new type of intrinsically stretchable, printable, electroactive ink consisting of 1T-MoS2 and a fluoroelastomer (FE). The active material (1T-MoS2/FE) is made by fluorinating the metallic-phase MoS2 (1T-MoS2) nanosheets with the FE under high-power ultra-sonication. The MoS2 in the 1T-MoS2/FE has unconventional crystal structures in which the stable cubic (1T) and distorted 2H structures were mixed. The printed line of the 1T-MoS2/FE on the porous stretchable Au collector electrodes is intrinsically stretchable at more than epsilon = 50% and has good specific capacitance (28 mF cm(-2) at 0.2 mA cm(-2)) and energy density (3.15 mWh cm(-3)). The in-plane all-solid-state stretchable supercapacitor is stretchable at epsilon = 40% and retains its relative capacity (C/C-o) by 80%. This printable device platform potentially opens up the in-plane fabrication of stretchable micro-supercapacitor devices for wearable electronic applications.
Publisher
AMER CHEMICAL SOC
ISSN
1944-8244
Keyword (Author)
Metallic-phase MoS2polymer composite inkintrinsic stretchabilityporous stretchable electrodestretchable supercapacitor
Keyword
RECENT PROGRESSULTRASONIC DEGRADATIONMOS2NANOSHEETSBATTERIES

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