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Fabrication and Application of Highly Stretchable Conductive Fiber‐Based Electrode of Epoxy/NBR Electrospun Fibers Spray‐Coated with AgNW/PU Composites
Author(s) -
Liu HsinYu,
Hsieh HuiChing,
Chen JungYao,
Shih ChienChung,
Lee WenYa,
Chiang YunChi,
Chen WenChang
Publication year - 2019
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201800387
Subject(s) - materials science , composite material , electrode , electrospinning , polyurethane , fiber , epoxy , stretchable electronics , fabrication , coating , composite number , electrical conductor , polymer , electronics , medicine , chemistry , alternative medicine , pathology
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 Ω) 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 .