Failure criterion of silver nanowire electrodes on a polymer substrate for highly flexible devices
Open accessAbstract
Nanomechanical characteristics of standalone silver nanowires (Ag NWs) are a key issue for providing a failure criterion of advanced flexible electrodes that are trending towards smaller radius of curvatures (ROCs). Through in-situ tensile and buckling tests of pentagonal Ag NWs, we demonstrated that the intrinsic fracture strain provides a significant criterion to predict the mechanical and electrical failure of Ag NW electrodes under various strain modes, because the decrease in fracture strain limits figure of merit of flexible devices. The Ag NW electrodes on a polymer substrate exhibited a strain-dependent electrical failure owing to the unique deformation characteristics with a size-dependent brittle-to-ductile transition of the five-fold twinned Ag NWs. All the Ag NWs greater than approximately 40 nm in diameter exhibited brittle fracture with a size-independent stress-strain response under tensile and buckling modes, which leads to the electrical failure of flexible electrodes at the almost same threshold ROC. Meanwhile, the higher ductility of Ag NWs less than 40 nm in diameter resulted in much smaller threshold ROCs of the electrodes due to the highly extended fracture strains, which can afford a high degree of freedom for highly flexible devices.
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Scaling the array with a 100-nm-line width is anticipated to reduce energy consumption to 2.64 nJ, outperforming GPU-based inference by more than four orders of magnitude.
“We anticipate that the energy consumption can reach 2.64 nJ, outperforming GPU-based inference by more than four orders of magnitude”
From Flexible self-rectifying synapse array for energy-efficient edge multiplication in electrocardiogram diagnosis (2025) · cites this paper as [56]
The Results and Discussion passages address fracture strain and electrical failure of silver-nanowire electrodes, not energy use for an inference array. Searches for “2.64 nJ,” GPU-based inference, and a 100-nm-line-width array found no passage in our copy addressing the claimed energy estimate or comparison. (LLM, conf=0.78)
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- Authors
- Kim, D., Kim, S.-H., Kim, J. H., Lee, J.-C., Ahn, J.-P., & Kim, S. W.
- Affiliations
- Korea University (KR)
- Yonsei University (KR)
- Korea Institute of Science and Technology (KR)
- Corresponding author
- Kim, Sung-Hoon
- Ahn, Jae-Pyoung
- Kim, Sang Woo
- Venue
- Scientific Reports
- Published
- 2017-04-05
- Volume
- 7
- Issue
- 1
- Pages
- 45903-45903
- ISSN
- 2045-2322 (ISSN-L)
- PMC
- PMC5381103
- OpenAlex
- W2604237077
- Cited by
- 32
- References
- 36
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 5 · 2023: 1 · 2022: 8 · 2021: 5 · 2020: 4 · 2019: 3 · 2018: 2
- FWCI
- 1.02
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Scientific Reports (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Funders
- Ministry of Trade, Industry and Energy (10045475)
- Korea Institute of Science and Technology (2E27500)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Nanomaterials and Printing Technologies
- Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrodeposition and Electroless Coatings
- Keywords
- silver nanowires, flexible electrodes, polymer substrates, fracture strain, failure criteria, buckling, tensile deformation, radius of curvature, ductile-to-brittle transition, size-dependent mechanical properties, electrical failure, nanomechanical properties
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