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Cited by 332Advanced Sensor and Energy Harvesting MaterialsNanomaterials and Printing TechnologiesDielectric materials and actuators

Elastomeric transparent capacitive sensors based on an interpenetrating composite of silver nanowires and polyurethane

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Hu, Weili, Niu, Xiaofan, Zhao, Ran, Pei, Qibing·2013·Applied Physics Letters
DOI 10.1063/1.4794143
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Abstract

Highly flexible transparent capacitive sensors have been demonstrated for the detection of deformation and pressure. The elastomeric sensors employ a pair of compliant electrodes comprising silver nanowire networks embedded in the surface layer of polyurethane matrix, and a highly compliant dielectric spacer sandwiched between the electrodes. The capacitance of the sensor sheets increases linearly with strains up to 60% during uniaxial stretching, and linearly with externally applied transverse pressure from 1 MPa down to 1 kPa. Stretchable sensor arrays consisting of 10 × 10 pixels have also been fabricated by patterning the composite electrodes into X-Y addressable passive matrix.

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Crossref · 10.1063/1.4794143

Cites

21 of 21 references verified0 citation errors · 0 not checkable

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  • The piezoresistive sensitivity in polymer nanocomposite-based sensors is much larger than their piezo-capacitive sensitivities, which are typically less than 1.

    “The piezoresistive sensitivity in polymer nanocomposite-based sensors is much larger than their piezo-capacitive sensitivities, which are typically less than 1 [38,109].”

    From The emergence of AI-based wearable sensors for digital health technology: a review (2023) · cites this paper as [109]

  • Highly deformable dielectric materials can be realized by using commercial porous tapes, creating microstructures in elastomers using a mold, creating porous elastomers using sugar cubes as the template, or fabricating buckled structures through prestretching and releasing.

    “Highly deformable dielectric materials can be realized by using commercial porous tapes, [43] creating microstructures in elastomers using a mold (e.g., the surface of matte glass, [155] a micromachined Si mold, [131] or the surface of lotus leaf [156] ), creating porous elastomers using sugar cubes as the template, [157] or fabricating buckled structures through prestretching and releasing.[158]”

    From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [43]

  • 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 [43]

  • 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 [43]

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Authors
Hu, W., Niu, X., Zhao, R., & Pei, Q.
Affiliations
  • Department of Materials Science and Engineering, Henry Samueli School of Engineering and Applied Science, University of California 1 , Los Angeles, California 90095, USA
  • University of California, Los Angeles (US)
ORCID
Venue
Applied Physics Letters
Publisher
AIP Publishing
Published
2013-02-25
Volume
102
Issue
8
ISSN
  • 0003-6951 (ISSN-L)
  • 1077-3118
DOI
10.1063/1.4794143
OpenAlex
W2004636727
Cited by
332
References
22
Citations by year
2026: 9 · 2025: 12 · 2024: 13 · 2023: 26 · 2022: 29 · 2021: 19 · 2020: 34 · 2019: 39 · 2018: 27 · 2017: 30 · 2016: 32 · 2015: 28 · 2014: 23 · 2013: 11
FWCI
17.30
Type
journal article
Language
en
Open access
Licence
Locations
Applied Physics Letters (publishedVersion, cc-by)
Funders
NSF (ECCS-1028412)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Nanomaterials and Printing Technologies
  • Physical Sciences › Engineering › Biomedical Engineering › Dielectric materials and actuators
Keywords
silver nanowire networks, polyurethane matrix, interpenetrating polymer networks, stretchable electronics, strain sensing, pressure sensing, compliant electrodes, dielectric spacer

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