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Strain-resilient electrical functionality in thin-film metal electrodes using two-dimensional interlayers

Flexible electrodes that allow electrical conductance to be maintained during mechanical deformation are required for the development of wearable electronics. However, flexible electrodes based on metal thin-films on elastomeric substrates can suffer from complete and unexpected electrical disconnec...

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Autores principales: Cho, Chullhee, Kang, Pilgyu, Taqieddin, Amir, Jing, Yuhang, Yong, Keong, Kim, Jin Myung, Haque, Md Farhadul, Aluru, Narayana R., Nam, SungWoo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8819722/
https://www.ncbi.nlm.nih.gov/pubmed/35136855
http://dx.doi.org/10.1038/s41928-021-00538-4
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author Cho, Chullhee
Kang, Pilgyu
Taqieddin, Amir
Jing, Yuhang
Yong, Keong
Kim, Jin Myung
Haque, Md Farhadul
Aluru, Narayana R.
Nam, SungWoo
author_facet Cho, Chullhee
Kang, Pilgyu
Taqieddin, Amir
Jing, Yuhang
Yong, Keong
Kim, Jin Myung
Haque, Md Farhadul
Aluru, Narayana R.
Nam, SungWoo
author_sort Cho, Chullhee
collection PubMed
description Flexible electrodes that allow electrical conductance to be maintained during mechanical deformation are required for the development of wearable electronics. However, flexible electrodes based on metal thin-films on elastomeric substrates can suffer from complete and unexpected electrical disconnection after the onset of mechanical fracture across the metal. Here we show that the strain-resilient electrical performance of thin-film metal electrodes under multimodal deformation can be enhanced by using a two-dimensional (2D) interlayer. Insertion of atomically-thin interlayers — graphene, molybdenum disulfide, or hexagonal boron nitride — induce continuous in-plane crack deflection in thin-film metal electrodes. This leads to unique electrical characteristics (termed electrical ductility) in which electrical resistance gradually increases with strain, creating extended regions of stable resistance. Our 2D-interlayer electrodes can maintain a low electrical resistance beyond a strain in which conventional metal electrodes would completely disconnect. We use the approach to create a flexible electroluminescent light emitting device with an augmented strain-resilient electrical functionality and an early-damage diagnosis capability.
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spelling pubmed-88197222022-02-07 Strain-resilient electrical functionality in thin-film metal electrodes using two-dimensional interlayers Cho, Chullhee Kang, Pilgyu Taqieddin, Amir Jing, Yuhang Yong, Keong Kim, Jin Myung Haque, Md Farhadul Aluru, Narayana R. Nam, SungWoo Nat Electron Article Flexible electrodes that allow electrical conductance to be maintained during mechanical deformation are required for the development of wearable electronics. However, flexible electrodes based on metal thin-films on elastomeric substrates can suffer from complete and unexpected electrical disconnection after the onset of mechanical fracture across the metal. Here we show that the strain-resilient electrical performance of thin-film metal electrodes under multimodal deformation can be enhanced by using a two-dimensional (2D) interlayer. Insertion of atomically-thin interlayers — graphene, molybdenum disulfide, or hexagonal boron nitride — induce continuous in-plane crack deflection in thin-film metal electrodes. This leads to unique electrical characteristics (termed electrical ductility) in which electrical resistance gradually increases with strain, creating extended regions of stable resistance. Our 2D-interlayer electrodes can maintain a low electrical resistance beyond a strain in which conventional metal electrodes would completely disconnect. We use the approach to create a flexible electroluminescent light emitting device with an augmented strain-resilient electrical functionality and an early-damage diagnosis capability. 2021-02 2021-02-01 /pmc/articles/PMC8819722/ /pubmed/35136855 http://dx.doi.org/10.1038/s41928-021-00538-4 Text en Users may view, print, copy, and download text and data-mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use:http://www.nature.com/authors/editorial_policies/license.html#terms
spellingShingle Article
Cho, Chullhee
Kang, Pilgyu
Taqieddin, Amir
Jing, Yuhang
Yong, Keong
Kim, Jin Myung
Haque, Md Farhadul
Aluru, Narayana R.
Nam, SungWoo
Strain-resilient electrical functionality in thin-film metal electrodes using two-dimensional interlayers
title Strain-resilient electrical functionality in thin-film metal electrodes using two-dimensional interlayers
title_full Strain-resilient electrical functionality in thin-film metal electrodes using two-dimensional interlayers
title_fullStr Strain-resilient electrical functionality in thin-film metal electrodes using two-dimensional interlayers
title_full_unstemmed Strain-resilient electrical functionality in thin-film metal electrodes using two-dimensional interlayers
title_short Strain-resilient electrical functionality in thin-film metal electrodes using two-dimensional interlayers
title_sort strain-resilient electrical functionality in thin-film metal electrodes using two-dimensional interlayers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8819722/
https://www.ncbi.nlm.nih.gov/pubmed/35136855
http://dx.doi.org/10.1038/s41928-021-00538-4
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