Highly Sensitive and Stretchable Multidimensional Strain Sensor with Prestrained Anisotropic Metal Nanowire Percolation Networks
Abstract
To overcome the limitation of the conventional single axis-strain sensor, we demonstrate a multidimensional strain sensor composed of two layers of prestrained silver nanowire percolation network with decoupled and polarized electrical response in principal and perpendicular directional strain. The information on strain vector is successfully measured up to 35% maximum strain with large gauge factor (>20). The potential of the proposed sensor as a versatile wearable device has been further confirmed.
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The application of an array of such strain sensors in mapping the strain distribution was demonstrated.
“The application of an array of such strain sensors in mapping the strain distribution was demonstrated.[50]”
From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [50]
Stretching along the prestrain direction leads to flattening of the wavy structure, which accompanies an almost constant resistance.
“Stretching along the prestrain direction leads to flattening of the wavy structure (Figure 4g), which accompanies an almost constant resistance.”
From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [50]
Without the wavy structure, significant resistance change was observed when strain was applied along the perpendicular direction.
“In contrast, without the wavy structure, significant resistance change was observed when the strain was applied along the perpendicular direction.”
From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [50]
Wavy AgNW percolation networks introduced by a prestrain (100%) release-buckling process make a strain sensor only responsive to strain in one direction.
“To make the strain sensor only responsive to strain in one direction, wavy AgNW percolation networks were introduced by a prestrain (100%)release-buckling process.[50]”
From Nanomaterial-Enabled Wearable Sensors for Healthcare (2018) · cites this paper as [50]
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- Authors
- Kim, K. K., Hong, S., Cho, H. M., Lee, J., Suh, Y. D., Ham, J., & Ko, S. H.
- Affiliations
- Seoul National University (KR)
- Stanford University (US)
- Corresponding author
- Ko, Seung Hwan
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-07-07
- Volume
- 15
- Issue
- 8
- Pages
- 5240-5247
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2432872509
- Cited by
- 626
- References
- 42
- Citations by year
- 2026: 13 · 2025: 39 · 2024: 53 · 2023: 51 · 2022: 66 · 2021: 73 · 2020: 73 · 2019: 75 · 2018: 81 · 2017: 55 · 2016: 39 · 2015: 7 · 2013: 1
- FWCI
- 30.19
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Nano Letters (publishedVersion)
- PubMed (publishedVersion)
- Seoul National University Open Repository (Seoul National University) (submittedVersion)
- Funders
- Institute of Advanced Machinery and Design, Seoul National University
- National Research Foundation of Korea (2012-0008779, 2012-054172)
- 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 › Nanowire Synthesis and Applications
- Keywords
- silver nanowires, stretchable electronics, wearable devices, gauge factor
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