Crack-induced Ag nanowire networks for transparent, stretchable, and highly sensitive strain sensors

Abstract Crack-based strain sensor systems have been known for its high sensitivity, but suffer from the small fracture strain of the thin metal films employed in the sensor which results in its negligible stretchability. Herein, we fabricated a transparent (>90% at 550 nm wavelength), stretchabl...

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Autores principales:	Chan-Jae Lee, Keum Hwan Park, Chul Jong Han, Min Suk Oh, Banseok You, Young-Seok Kim, Jong-Woong Kim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5f9d631f8f014f0d84cd5079f39485e9
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spelling	oai:doaj.org-article:5f9d631f8f014f0d84cd5079f39485e92021-12-02T16:08:09ZCrack-induced Ag nanowire networks for transparent, stretchable, and highly sensitive strain sensors10.1038/s41598-017-08484-y2045-2322https://doaj.org/article/5f9d631f8f014f0d84cd5079f39485e92017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08484-yhttps://doaj.org/toc/2045-2322Abstract Crack-based strain sensor systems have been known for its high sensitivity, but suffer from the small fracture strain of the thin metal films employed in the sensor which results in its negligible stretchability. Herein, we fabricated a transparent (>90% at 550 nm wavelength), stretchable (up to 100%), and sensitive (gauge factor (GF) of 30 at 100% strain) strain gauge by depositing an encapsulated crack-induced Ag nanowire (AgNW) network on a hydroxylated poly(dimethylsiloxane) (PDMS) film. Stretching the encapsulated AgNWs/PDMS resulted in the formation of a percolation network of nanowire ligaments with abundant percolation paths. The encapsulating polymer was designed to adhere strongly to both the AgNW and PDMS. The improved adhesion ensured the resistance of the crack-induced network of AgNWs varied reversibly, stably, and sensitively when stretched and released, at strains of up to 100%. The developed sensor successfully detected human motions when applied to the skin.Chan-Jae LeeKeum Hwan ParkChul Jong HanMin Suk OhBanseok YouYoung-Seok KimJong-Woong KimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chan-Jae Lee Keum Hwan Park Chul Jong Han Min Suk Oh Banseok You Young-Seok Kim Jong-Woong Kim Crack-induced Ag nanowire networks for transparent, stretchable, and highly sensitive strain sensors
description	Abstract Crack-based strain sensor systems have been known for its high sensitivity, but suffer from the small fracture strain of the thin metal films employed in the sensor which results in its negligible stretchability. Herein, we fabricated a transparent (>90% at 550 nm wavelength), stretchable (up to 100%), and sensitive (gauge factor (GF) of 30 at 100% strain) strain gauge by depositing an encapsulated crack-induced Ag nanowire (AgNW) network on a hydroxylated poly(dimethylsiloxane) (PDMS) film. Stretching the encapsulated AgNWs/PDMS resulted in the formation of a percolation network of nanowire ligaments with abundant percolation paths. The encapsulating polymer was designed to adhere strongly to both the AgNW and PDMS. The improved adhesion ensured the resistance of the crack-induced network of AgNWs varied reversibly, stably, and sensitively when stretched and released, at strains of up to 100%. The developed sensor successfully detected human motions when applied to the skin.
format	article
author	Chan-Jae Lee Keum Hwan Park Chul Jong Han Min Suk Oh Banseok You Young-Seok Kim Jong-Woong Kim
author_facet	Chan-Jae Lee Keum Hwan Park Chul Jong Han Min Suk Oh Banseok You Young-Seok Kim Jong-Woong Kim
author_sort	Chan-Jae Lee
title	Crack-induced Ag nanowire networks for transparent, stretchable, and highly sensitive strain sensors
title_short	Crack-induced Ag nanowire networks for transparent, stretchable, and highly sensitive strain sensors
title_full	Crack-induced Ag nanowire networks for transparent, stretchable, and highly sensitive strain sensors
title_fullStr	Crack-induced Ag nanowire networks for transparent, stretchable, and highly sensitive strain sensors
title_full_unstemmed	Crack-induced Ag nanowire networks for transparent, stretchable, and highly sensitive strain sensors
title_sort	crack-induced ag nanowire networks for transparent, stretchable, and highly sensitive strain sensors
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/5f9d631f8f014f0d84cd5079f39485e9
work_keys_str_mv	AT chanjaelee crackinducedagnanowirenetworksfortransparentstretchableandhighlysensitivestrainsensors AT keumhwanpark crackinducedagnanowirenetworksfortransparentstretchableandhighlysensitivestrainsensors AT chuljonghan crackinducedagnanowirenetworksfortransparentstretchableandhighlysensitivestrainsensors AT minsukoh crackinducedagnanowirenetworksfortransparentstretchableandhighlysensitivestrainsensors AT banseokyou crackinducedagnanowirenetworksfortransparentstretchableandhighlysensitivestrainsensors AT youngseokkim crackinducedagnanowirenetworksfortransparentstretchableandhighlysensitivestrainsensors AT jongwoongkim crackinducedagnanowirenetworksfortransparentstretchableandhighlysensitivestrainsensors
_version_	1718384598644162560

Crack-induced Ag nanowire networks for transparent, stretchable, and highly sensitive strain sensors

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