Silicone substrate with in situ strain relief for stretchable thin-film transistors
Open accessAbstract
We have manufactured stretchable thin-film transistors and interconnects directly onto an engineered silicone matrix with localized and graded mechanical compliance. The fabrication only involves planar and standard processing. Brittle active device materials are patterned on non deformable elastomer regions (strain <1% at all times) while interconnects run smoothly from “stiff” to “soft” elastomer. Pentacene thin-film transistors sustain applied strain up to 13% without electrical degradation and mechanical fracture. This integrated approach opens promising options for the manufacture of physically adaptable and transformable circuitry.
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Although the hybrid film was stretched up to 30% in tensile strain, negligible strain (~0%) was applied on the reinforced islands, and the elastic region was mainly stretched because of the significant difference in Young's modulus.
“Although this hybrid film was stretched up to 30% in tensile strain, negligible strain (~0%) was applied on the reinforced islands, and the elastic region was mainly stretched because of the significant difference in Young’s modulus (24, 27, 28).”
From Soft, smart contact lenses with integrations of wireless circuits, glucose sensors, and displays (2018) · cites this paper as [24]
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Cites
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- Authors
- Graz, I. M., Cotton, D. P. J., Robinson, A., & Lacour, S. P.
- Affiliations
- University of Cambridge (GB)
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2011-03-21
- Volume
- 98
- Issue
- 12
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2158311275
- Cited by
- 111
- References
- 11
- Citations by year
- 2026: 4 · 2025: 3 · 2024: 7 · 2023: 9 · 2022: 7 · 2021: 8 · 2020: 5 · 2019: 14 · 2018: 4 · 2017: 1 · 2016: 8 · 2015: 14 · 2014: 12 · 2013: 7 · 2012: 7
- FWCI
- 6.05
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Applied Physics Letters (publishedVersion)
- Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
- Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
- Funders
- Engineering and Physical Sciences Research Council (EP/G020930/1)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Organic Electronics and Photovoltaics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Nanomaterials and Printing Technologies
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Thin-Film Transistor Technologies
- Keywords
- stretchable electronics, thin-film transistors, silicone substrate, strain relaxation, pentacene, flexible circuits, strain tolerance
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