Cited by 165Advanced Sensor and Energy Harvesting MaterialsNanomaterials and Printing TechnologiesNeuroscience and Neural Engineering

Stretchable electronic skin based on silver nanowire composite fiber electrodes for sensing pressure, proximity, and multidirectional strain

Cheng, Yin, Wang, Ranran, Zhai, Haitao, Sun, Jing·2017·Nanoscale

Abstract

Electronic skin (E-skin) has been attracting great research interest and effort due to its potential applications in wearable health monitoring, smart prosthetics, robot skins and so on. To expand its applications, two key challenges lie in the realization of device stretchability, and independent sensing of pressure and multidirectional lateral strain. Here we made a combination of rational device structure and artfully engineered sensing materials to fulfill the mentioned demands. The as-prepared E-skin took a simple orthogonal configuration to enable both capacitive mode for pressure sensing and resistive mode for multidirectional strain sensing, independently. Pre-cracked silver nanowire based fibers with helical microstructures were utilized as basic electrodes to endow the E-skin with intrinsic stretchability and strain sensing capability. Through dielectric layer optimization, the pressure sensing sensitivity was greatly enhanced, with a detection limit of 1.5 Pa. For application demonstrations, we utilized the E-skin as both flat and curved platforms for pressure mapping, and also as human motion sensors, such as palm and thumb bending.

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Registry

Crossref · 10.1039/c7nr00121e

Cites

54 of 54 references verified0 citation errors · 0 not checkable

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  • Touch sensing can be achieved using the capacitive mechanism in a capacitor configuration; unlike strain and pressure sensors that rely on geometrical effect, a decrease in capacitance is seen for touch sensing, arising from the disturbed fringing field by the conducting object.

    “Touch sensing can be achieved using the capacitive mechanism in a capacitor configuration.[41,43,54,165,166] Different from strain and pressure sensors that rely on geometrical effect, a decrease in capacitance is seen for touch sensing, arising from the disturbed fringing field by the conducting object (Figure 4d).”

    From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [165]

  • Sensors in the form of a stretchable capacitor can sense tensile stretching and normal pressure based on dimensional change and sense the approaching of an object based on the disturbed fringing field.

    “Sensors in the form of a stretchable capacitor can sense the tensile stretching and normal pressure based on the dimensional change and sense the approaching of an object based on the disturbed fringing field, as shown in Figure 4d.[25,41,43,165]”

    From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [165]

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Authors
Cheng, Y., Wang, R., Zhai, H., & Sun, J.
Affiliations
Chinese Academy of Sciences (CN)
Corresponding author
  • Wang, Ranran
  • Sun, Jing
Venue
Nanoscale
Published
2017
Volume
9
Issue
11
Pages
3834-3842
ISSN
  • 2040-3364 (ISSN-L)
  • 2040-3372
OpenAlex
W2588934015
Cited by
165
References
54
Citations by year
2026: 7 · 2025: 8 · 2024: 18 · 2023: 22 · 2022: 17 · 2021: 24 · 2020: 22 · 2019: 25 · 2018: 15 · 2017: 7
FWCI
8.49
Type
journal article
Language
en
Open access
closed
Locations
  • Nanoscale (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Nanomaterials and Printing Technologies
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
Keywords
pressure sensing, proximity sensing, capacitive sensors, resistive sensors, helical microstructures, wearable health monitoring, human motion detection

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