期刊
LANGMUIR
卷 27, 期 8, 页码 4279-4284出版社
AMER CHEMICAL SOC
DOI: 10.1021/la103213n
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资金
- EPSRC
- Royal Society
Stretchable electronics (i.e., hybrid inorganic or organic circuits integrated on elastomeric substrates) rely on elastic wiring. We present a technique for fabricating reversibly stretchable metallic films by printing silver-based ink onto microstructured silicone substrates. The wetting and pinning of the ink on the elastomer surface is adjusted and optimized by varying the geometry of micropillar arrays patterned on the silicone substrate. The resulting films exhibit high electrical conductivity (similar to 11 000 S/cm) and can stretch reversibly to 20% strain over 1000 times without failing electrically. The stretchability of the >= 200 nm thick metallic film relies on engineered strain relief in the printed film on patterned PDMS.
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