BROWSE

Related Researcher

Author's Photo

Bae, Joonbum
Bio-Robotics and Control (BiRC) Lab
Research Interests
  • Design and control of physical human-robot interaction systems
  • Soft robotics
  • Intelligent interaction algorithms for virtual reality, tele-operation and rehabilitation
  • Bio-inspired robotics for improved mobility

ITEM VIEW & DOWNLOAD

Analysis of electrical resistance changes in liquid metal printed wires under strain for stretchable electronics

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Analysis of electrical resistance changes in liquid metal printed wires under strain for stretchable electronics
Author
Kim, HeeyeopBae, Joonbum
Issue Date
2021-09
Publisher
IOP PUBLISHING LTD
Citation
SMART MATERIALS AND STRUCTURES, v.30, no.9, pp.095004
Abstract
Eutectic gallium-indium (eGaIn) is an electrically conductive metal that is liquid at room temperature and has been used for electrical wires in a variety of stretchable electronics. However, only tensile directional and tensile-vertical eGaIn wires have been analyzed in detail with regard to their resistance changes under tension, limiting the ability to precisely predict and adjust resistance changes in eGaIn-based electronics. To overcome these limitations, this study formulated and validated models for prediction of the resistance changes in tilted and circular arc-shaped eGaIn wires under uniaxial strain. In tensile tests, the prediction models showed not only changes in resistance highly similar to the actual resistance changes in the strain range from 0% to 150% with root mean square errors of less than 0.05 between the predicted and measured resistance changes, but also adjustability of the resistance changes under tension according to the initial tilt angle of the tilted eGaIn wires or initial shape of arc eGaIn wires. Additionally, the prediction models developed and applied for eGaIn-based applications, including eGaIn strain sensors, heaters, and stretchable wires, yielded accurate predictions. The proposed models are expected to be useful for the precise prediction of resistance changes and pattering of eGaIn-based stretchable electronics.
URI
https://scholarworks.unist.ac.kr/handle/201301/53252
URL
https://iopscience.iop.org/article/10.1088/1361-665X/ac1562
DOI
10.1088/1361-665X/ac1562
ISSN
0964-1726
Appears in Collections:
MEN_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU