Geometrically engineered rigid island array for stretchable electronics capable of withstanding various deformation modes

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Integration of rigid components in soft polymer matrix is considered as the most feasible architecture to enable stretchable electronics. However, a method of suppressing cracks at the interface between soft and rigid materials due to excessive and repetitive deformations of various types remains a formidable challenge. Here, we geometrically engineered Ferris wheel-shaped islands (FWIs) capable of effectively suppressing crack propagation at the interface under various deformation modes (stretching, twisting, poking, and crumpling). The optimized FWIs have notable increased strain at failure and fatigue life compared with conventional circle- and square-shaped islands. Stretchable electronics composed of various rigid components (LED and coin cell) were demonstrated using intrinsically stretchable printed electrodes. Furthermore, electronic skin capable of differentiating various tactile stimuli without interference was demonstrated. Our method enables stretchable electronics that can be used under various geometrical forms with notable enhanced durability, enabling stretchable electronics to withstand potentially harsh conditions of everyday usage.
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Issue Date
2022-06
Language
English
Article Type
Article
Citation

SCIENCE ADVANCES, v.8, no.22

ISSN
2375-2548
DOI
10.1126/sciadv.abn3863
URI
http://hdl.handle.net/10203/297109
Appears in Collection
ME-Journal Papers(저널논문)MS-Journal Papers(저널논문)
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