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Highly Stretchable and Highly Conductive Metal Electrode by Very Long Metal Nanowire Percolation Network

Authors

  • Phillip Lee,

    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Korea
    Current affiliation:
    1. P. L. and J. L. contributed equally to this work.
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  • Jinhwan Lee,

    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Korea
    Current affiliation:
    1. P. L. and J. L. contributed equally to this work.
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  • Hyungman Lee,

    1. Nano Sensor and Device Team, Korea Electronics Technology Institute (KETI), Gyeonggi-do, 463-816, Korea
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  • Junyeob Yeo,

    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Korea
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  • Sukjoon Hong,

    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Korea
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  • Koo Hyun Nam,

    1. Department of Physics, Ewha Womans University, Seoul, 120-750, Korea.
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  • Dongjin Lee,

    1. School of Mechanical Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 143-701, Korea
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  • Seung Seob Lee,

    Corresponding author
    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Korea
    • Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Korea.
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  • Seung Hwan Ko

    Corresponding author
    1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Korea
    • Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Korea.
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Abstract

original image

A highly stretchable metal electrode is developed via the solution-processing of very long (>100 μm) metallic nanowires and subsequent percolation network formation via low-temperature nanowelding. The stretchable metal electrode from very long metal nanowires demonstrated high electrical conductivity (∼9 ohm sq−1) and mechanical compliance (strain > 460%) at the same time. This method is expected to overcome the performance limitation of the current stretchable electronics such as graphene, carbon nanotubes, and buckled nanoribbons.

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