Ultrastretchable Analog/Digital Signal Transmission Line with Carbon Nanotube Sheets

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Title
Ultrastretchable Analog/Digital Signal Transmission Line with Carbon Nanotube Sheets
Author(s)
Yourack Lee; Min-Kyu Joo; Viet Thong Le; Raquel Ovalle-Robles; Xavier Lepro; Marcio D. Lima; Daniel G. Suh; Han Young Yu; Young Hee Lee; Dongseok Suh
Publication Date
2017-08
Journal
ACS APPLIED MATERIALS & INTERFACES, v.9, no.31, pp.26286 - 26292
Publisher
AMER CHEMICAL SOC
Abstract
Stretchable conductors can be used in various applications depending on their own characteristics. Here, we demonstrate simple and robust elastomeric conductors that are optimized for stretchable electrical signal transmission line. They can withstand strains up to 600% without any substantial change in their resistance (<= 10% as is and <= 1% with passivation), and exhibit suppressed charge fluctuations in the medium. The inherent elasticity of a polymeric rubber and the high conductivity of flexible, highly oriented carbon nanotube sheets were combined synergistically, without losing both properties. The nanoscopic strong adhesion between aligned carbon nanotube arrays and strained elastomeric polymers induces conductive wavy folds with microscopic bending of radii on the scale of a few micrometers. Such features enable practical applications such as in elastomeric length-changeable electrical digital and analog signal transmission lines at above MHz frequencies. In addition to reporting basic direct current, alternating current, and noise characterizations of the elastomeric conductors, various examples as a stretchable signal transmission line up to 600% strains are presented by confirming the capability of transmitting audio and video signals, as well as low-frequency medical signals without information distortion. © 2017 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/3942
ISSN
1944-8244
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
Files in This Item:
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