High-adhesion vertically aligned gold nanowire stretchable electrodes: Via a thin-layer soft nailing strategy

Yunzhi Ling; Keying Guo; Bowen Zhu; Beatriz Prieto-Simon; Nicolas H. Voelcker; Wenlong Cheng

doi:10.1039/c9nh00336c

High-adhesion vertically aligned gold nanowire stretchable electrodes: Via a thin-layer soft nailing strategy

Yunzhi Ling, Keying Guo, Bowen Zhu, Beatriz Prieto-Simon, Nicolas H. Voelcker, Wenlong Cheng^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A stretchable electrode is a crucial component in future elastronics (i.e. stretchable electronics) with implications in soft actuators, healthcare monitoring, and robotics to name a few. The performance of the stretchable electrode is generally evaluated in terms of three key aspects: Sensitivity, stretchability, and durability. While encouraging progress has been made in the first two aspects, long-term stability remains a challenge because of failure at the soft/hard materials interface between active materials and elastomeric substrates. Here, we propose a new microsphere lithography-based strategy to pattern vertically aligned gold nanowires (v-AuNWs) with quasi-ordered pinholes, allowing 'nailing' of PDMS into the pinholes. This enabled substantially enhanced interfacial adhesion of 24 times greater than that without microsphere lithography. Moreover, the pinhole size in the v-AuNW film could be tuned from an average diameter of 0.4 to 2.8 μm. Both experimental and simulation results demonstrate that the sensitivity increased as the pinhole size increased. Our strategy represents a novel route to fabricate robust elastronic electrodes for potential applications in next-generation wearable and implantable devices.

Original language	English
Pages (from-to)	1380-1387
Number of pages	8
Journal	Nanoscale Horizons
Volume	4
Issue number	6
DOIs	https://doi.org/10.1039/c9nh00336c
State	Published - Nov 2019
Externally published	Yes

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title = "High-adhesion vertically aligned gold nanowire stretchable electrodes: Via a thin-layer soft nailing strategy",

abstract = "A stretchable electrode is a crucial component in future elastronics (i.e. stretchable electronics) with implications in soft actuators, healthcare monitoring, and robotics to name a few. The performance of the stretchable electrode is generally evaluated in terms of three key aspects: Sensitivity, stretchability, and durability. While encouraging progress has been made in the first two aspects, long-term stability remains a challenge because of failure at the soft/hard materials interface between active materials and elastomeric substrates. Here, we propose a new microsphere lithography-based strategy to pattern vertically aligned gold nanowires (v-AuNWs) with quasi-ordered pinholes, allowing 'nailing' of PDMS into the pinholes. This enabled substantially enhanced interfacial adhesion of 24 times greater than that without microsphere lithography. Moreover, the pinhole size in the v-AuNW film could be tuned from an average diameter of 0.4 to 2.8 μm. Both experimental and simulation results demonstrate that the sensitivity increased as the pinhole size increased. Our strategy represents a novel route to fabricate robust elastronic electrodes for potential applications in next-generation wearable and implantable devices.",

author = "Yunzhi Ling and Keying Guo and Bowen Zhu and Beatriz Prieto-Simon and Voelcker, {Nicolas H.} and Wenlong Cheng",

note = "Publisher Copyright: {\textcopyright} 2019 The Royal Society of Chemistry.",

year = "2019",

month = nov,

doi = "10.1039/c9nh00336c",

language = "英语",

volume = "4",

pages = "1380--1387",

journal = "Nanoscale Horizons",

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publisher = "Royal Society of Chemistry",

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T1 - High-adhesion vertically aligned gold nanowire stretchable electrodes

T2 - Via a thin-layer soft nailing strategy

AU - Ling, Yunzhi

AU - Guo, Keying

AU - Zhu, Bowen

AU - Prieto-Simon, Beatriz

AU - Voelcker, Nicolas H.

AU - Cheng, Wenlong

PY - 2019/11

Y1 - 2019/11

N2 - A stretchable electrode is a crucial component in future elastronics (i.e. stretchable electronics) with implications in soft actuators, healthcare monitoring, and robotics to name a few. The performance of the stretchable electrode is generally evaluated in terms of three key aspects: Sensitivity, stretchability, and durability. While encouraging progress has been made in the first two aspects, long-term stability remains a challenge because of failure at the soft/hard materials interface between active materials and elastomeric substrates. Here, we propose a new microsphere lithography-based strategy to pattern vertically aligned gold nanowires (v-AuNWs) with quasi-ordered pinholes, allowing 'nailing' of PDMS into the pinholes. This enabled substantially enhanced interfacial adhesion of 24 times greater than that without microsphere lithography. Moreover, the pinhole size in the v-AuNW film could be tuned from an average diameter of 0.4 to 2.8 μm. Both experimental and simulation results demonstrate that the sensitivity increased as the pinhole size increased. Our strategy represents a novel route to fabricate robust elastronic electrodes for potential applications in next-generation wearable and implantable devices.

AB - A stretchable electrode is a crucial component in future elastronics (i.e. stretchable electronics) with implications in soft actuators, healthcare monitoring, and robotics to name a few. The performance of the stretchable electrode is generally evaluated in terms of three key aspects: Sensitivity, stretchability, and durability. While encouraging progress has been made in the first two aspects, long-term stability remains a challenge because of failure at the soft/hard materials interface between active materials and elastomeric substrates. Here, we propose a new microsphere lithography-based strategy to pattern vertically aligned gold nanowires (v-AuNWs) with quasi-ordered pinholes, allowing 'nailing' of PDMS into the pinholes. This enabled substantially enhanced interfacial adhesion of 24 times greater than that without microsphere lithography. Moreover, the pinhole size in the v-AuNW film could be tuned from an average diameter of 0.4 to 2.8 μm. Both experimental and simulation results demonstrate that the sensitivity increased as the pinhole size increased. Our strategy represents a novel route to fabricate robust elastronic electrodes for potential applications in next-generation wearable and implantable devices.

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JO - Nanoscale Horizons

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IS - 6

ER -

High-adhesion vertically aligned gold nanowire stretchable electrodes: Via a thin-layer soft nailing strategy

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