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Micro-/nano-voids guided two-stage film cracking on bioinspired assemblies for high-performance electronics
Current metal film-based electronics, while sensitive to external stretching, typically fail via uncontrolled cracking under a relatively small strain (~30%), which restricts their practical applications. To address this, here we report a design approach inspired by the stereocilia bundles of a coch...
Autores principales: | , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6711965/ https://www.ncbi.nlm.nih.gov/pubmed/31455776 http://dx.doi.org/10.1038/s41467-019-11803-8 |
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author | Miao, Weining Yao, Yuxing Zhang, Zhiwei Ma, Chunping Li, Shengzhe Tang, Jiayue Liu, He Liu, Zemin Wang, Dianyu Camburn, Michael A. Fang, Jen-Chun Hao, Ruiran Fang, Xinyu Zheng, Shuang Hu, Nan Wang, Xiaoguang |
author_facet | Miao, Weining Yao, Yuxing Zhang, Zhiwei Ma, Chunping Li, Shengzhe Tang, Jiayue Liu, He Liu, Zemin Wang, Dianyu Camburn, Michael A. Fang, Jen-Chun Hao, Ruiran Fang, Xinyu Zheng, Shuang Hu, Nan Wang, Xiaoguang |
author_sort | Miao, Weining |
collection | PubMed |
description | Current metal film-based electronics, while sensitive to external stretching, typically fail via uncontrolled cracking under a relatively small strain (~30%), which restricts their practical applications. To address this, here we report a design approach inspired by the stereocilia bundles of a cochlea that uses a hierarchical assembly of interfacial nanowires to retard penetrating cracking. This structured surface outperforms its flat counterparts in stretchability (130% versus 30% tolerable strain) and maintains high sensitivity (minimum detection of 0.005% strain) in response to external stimuli such as sounds and mechanical forces. The enlarged stretchability is attributed to the two-stage cracking process induced by the synergy of micro-voids and nano-voids. In-situ observation confirms that at low strains micro-voids between nanowire clusters guide the process of crack growth, whereas at large strains new cracks are randomly initiated from nano-voids among individual nanowires. |
format | Online Article Text |
id | pubmed-6711965 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-67119652019-08-29 Micro-/nano-voids guided two-stage film cracking on bioinspired assemblies for high-performance electronics Miao, Weining Yao, Yuxing Zhang, Zhiwei Ma, Chunping Li, Shengzhe Tang, Jiayue Liu, He Liu, Zemin Wang, Dianyu Camburn, Michael A. Fang, Jen-Chun Hao, Ruiran Fang, Xinyu Zheng, Shuang Hu, Nan Wang, Xiaoguang Nat Commun Article Current metal film-based electronics, while sensitive to external stretching, typically fail via uncontrolled cracking under a relatively small strain (~30%), which restricts their practical applications. To address this, here we report a design approach inspired by the stereocilia bundles of a cochlea that uses a hierarchical assembly of interfacial nanowires to retard penetrating cracking. This structured surface outperforms its flat counterparts in stretchability (130% versus 30% tolerable strain) and maintains high sensitivity (minimum detection of 0.005% strain) in response to external stimuli such as sounds and mechanical forces. The enlarged stretchability is attributed to the two-stage cracking process induced by the synergy of micro-voids and nano-voids. In-situ observation confirms that at low strains micro-voids between nanowire clusters guide the process of crack growth, whereas at large strains new cracks are randomly initiated from nano-voids among individual nanowires. Nature Publishing Group UK 2019-08-27 /pmc/articles/PMC6711965/ /pubmed/31455776 http://dx.doi.org/10.1038/s41467-019-11803-8 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Miao, Weining Yao, Yuxing Zhang, Zhiwei Ma, Chunping Li, Shengzhe Tang, Jiayue Liu, He Liu, Zemin Wang, Dianyu Camburn, Michael A. Fang, Jen-Chun Hao, Ruiran Fang, Xinyu Zheng, Shuang Hu, Nan Wang, Xiaoguang Micro-/nano-voids guided two-stage film cracking on bioinspired assemblies for high-performance electronics |
title | Micro-/nano-voids guided two-stage film cracking on bioinspired assemblies for high-performance electronics |
title_full | Micro-/nano-voids guided two-stage film cracking on bioinspired assemblies for high-performance electronics |
title_fullStr | Micro-/nano-voids guided two-stage film cracking on bioinspired assemblies for high-performance electronics |
title_full_unstemmed | Micro-/nano-voids guided two-stage film cracking on bioinspired assemblies for high-performance electronics |
title_short | Micro-/nano-voids guided two-stage film cracking on bioinspired assemblies for high-performance electronics |
title_sort | micro-/nano-voids guided two-stage film cracking on bioinspired assemblies for high-performance electronics |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6711965/ https://www.ncbi.nlm.nih.gov/pubmed/31455776 http://dx.doi.org/10.1038/s41467-019-11803-8 |
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