Journal
MACROMOLECULAR CHEMISTRY AND PHYSICS
Volume 220, Issue 4, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.201800387
Keywords
conductive fibers; electrospinning; spray-coating; stretchable electrodes
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Funding
- Advanced Research Center of Green Materials Science and Technology from The Featured Area Research Center Program of the Ministry of Education [107L9006]
- Ministry of Science and Technology in Taiwan [MOST 106-2218-E-002-021-MY2, 107-2636-E-194-001, 107-3017-F-002-001]
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Stretchable fiber-based electrodes are highly desired for the applications of wearable electronics owing to their good durability, excellent deformability, and easy attachment onto a curved surface in comparison with thin film electrodes. However, it is a critical challenge to fabricate a fiber-based electrodes with low surface roughness and high conductivity under a large mechanical strain. In this study, the fabrication of stretchable and conductive epoxy/NBR-20 fiber, spray-coated with silver nanowire/waterborne polyurethane composite, is demonstrated via the combination of electrospinning and spray-coating techniques. Such a fiber-based electrode can maintain low resistance (less than 150 omega) by stretching up to 40% strain and sustain at 30% strain for 200 stretch/release cycles. The deformable conductive fibers can serve as a promising fiber-based bottom electrode for resistive memory devices and show volatile DRAM characteristics with an ON/OFF memory ratio of 10(2).
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