Embedding pinhole vertical gold nanowire electronic skins for braille recognition

Yunzhi Ling, Shu Gong, Qingfeng Zhai, Yan Wang, Yunmeng Zhao, Mingjie Yang, Wenlong Cheng

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Electronic skins (e-skins) have the potential to be conformally integrated with human body to revolutionize wearable electronics for a myriad of technical applications including healthcare, soft robotics, and the internet of things, to name a few. One of the challenges preventing the current proof of concept translating to real-world applications is the device durability, in which the strong adhesion between active materials and elastomeric substrate or human skin is required. Here, a new strategy is reported to embed vertically aligned standing gold nanowires (v-AuNWs) into polydimethylsiloxane, leading to a robust e-skin sensor. It is found that v-AuNWs with pinholes can have an adhesion energy 18-fold greater than that for pinhole-free v-AuNWs. Finite element modeling results show that this is due to friction force from interfacial embedment. Furthermore, it is demonstrated that the robust e-skin sensor can be used for braille recognition.

Original languageEnglish
Article number1804853
Number of pages7
JournalSmall
Volume15
Issue number13
DOIs
Publication statusPublished - 27 Mar 2019

Keywords

  • braille decoder
  • electronic skins
  • gold nanowires
  • high-adhesion
  • stretchable electrode

Cite this

Ling, Yunzhi ; Gong, Shu ; Zhai, Qingfeng ; Wang, Yan ; Zhao, Yunmeng ; Yang, Mingjie ; Cheng, Wenlong. / Embedding pinhole vertical gold nanowire electronic skins for braille recognition. In: Small. 2019 ; Vol. 15, No. 13.
@article{14084b8a3341476a85149ed14a8fb504,
title = "Embedding pinhole vertical gold nanowire electronic skins for braille recognition",
abstract = "Electronic skins (e-skins) have the potential to be conformally integrated with human body to revolutionize wearable electronics for a myriad of technical applications including healthcare, soft robotics, and the internet of things, to name a few. One of the challenges preventing the current proof of concept translating to real-world applications is the device durability, in which the strong adhesion between active materials and elastomeric substrate or human skin is required. Here, a new strategy is reported to embed vertically aligned standing gold nanowires (v-AuNWs) into polydimethylsiloxane, leading to a robust e-skin sensor. It is found that v-AuNWs with pinholes can have an adhesion energy 18-fold greater than that for pinhole-free v-AuNWs. Finite element modeling results show that this is due to friction force from interfacial embedment. Furthermore, it is demonstrated that the robust e-skin sensor can be used for braille recognition.",
keywords = "braille decoder, electronic skins, gold nanowires, high-adhesion, stretchable electrode",
author = "Yunzhi Ling and Shu Gong and Qingfeng Zhai and Yan Wang and Yunmeng Zhao and Mingjie Yang and Wenlong Cheng",
year = "2019",
month = "3",
day = "27",
doi = "10.1002/smll.201804853",
language = "English",
volume = "15",
journal = "Small",
issn = "1613-6810",
publisher = "Wiley-Blackwell",
number = "13",

}

Embedding pinhole vertical gold nanowire electronic skins for braille recognition. / Ling, Yunzhi; Gong, Shu; Zhai, Qingfeng; Wang, Yan; Zhao, Yunmeng; Yang, Mingjie; Cheng, Wenlong.

In: Small, Vol. 15, No. 13, 1804853, 27.03.2019.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Embedding pinhole vertical gold nanowire electronic skins for braille recognition

AU - Ling, Yunzhi

AU - Gong, Shu

AU - Zhai, Qingfeng

AU - Wang, Yan

AU - Zhao, Yunmeng

AU - Yang, Mingjie

AU - Cheng, Wenlong

PY - 2019/3/27

Y1 - 2019/3/27

N2 - Electronic skins (e-skins) have the potential to be conformally integrated with human body to revolutionize wearable electronics for a myriad of technical applications including healthcare, soft robotics, and the internet of things, to name a few. One of the challenges preventing the current proof of concept translating to real-world applications is the device durability, in which the strong adhesion between active materials and elastomeric substrate or human skin is required. Here, a new strategy is reported to embed vertically aligned standing gold nanowires (v-AuNWs) into polydimethylsiloxane, leading to a robust e-skin sensor. It is found that v-AuNWs with pinholes can have an adhesion energy 18-fold greater than that for pinhole-free v-AuNWs. Finite element modeling results show that this is due to friction force from interfacial embedment. Furthermore, it is demonstrated that the robust e-skin sensor can be used for braille recognition.

AB - Electronic skins (e-skins) have the potential to be conformally integrated with human body to revolutionize wearable electronics for a myriad of technical applications including healthcare, soft robotics, and the internet of things, to name a few. One of the challenges preventing the current proof of concept translating to real-world applications is the device durability, in which the strong adhesion between active materials and elastomeric substrate or human skin is required. Here, a new strategy is reported to embed vertically aligned standing gold nanowires (v-AuNWs) into polydimethylsiloxane, leading to a robust e-skin sensor. It is found that v-AuNWs with pinholes can have an adhesion energy 18-fold greater than that for pinhole-free v-AuNWs. Finite element modeling results show that this is due to friction force from interfacial embedment. Furthermore, it is demonstrated that the robust e-skin sensor can be used for braille recognition.

KW - braille decoder

KW - electronic skins

KW - gold nanowires

KW - high-adhesion

KW - stretchable electrode

UR - http://www.scopus.com/inward/record.url?scp=85062369980&partnerID=8YFLogxK

U2 - 10.1002/smll.201804853

DO - 10.1002/smll.201804853

M3 - Article

VL - 15

JO - Small

JF - Small

SN - 1613-6810

IS - 13

M1 - 1804853

ER -