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Arbitrary Alignment-angle Control Method of Electrospun Fibers: Potential for a Stretchable Electrode Material
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- Authors
- Doo-Hyeb Youn, Changbong Yeon, Jin Sik Choi, Nae-Man Park, Inyeal Lee, Gil-Ho Kim, Sun Jin Yun
- Issue Date
- 2017-09
- Citation
- RSC Advances, v.7, no.71, pp.44945-44953
- ISSN
- 2046-2069
- Publisher
- Royal Society of Chemistry (RSC)
- Language
- English
- Type
- Journal Article
- Project Code
- 17HB1300, Fundamental technologies of two-dimensional materials and devices for the platform of new-functional smart devices, Sun Jin Yun
- Abstract
- Uniform and reproducible alignment methods for one-dimensional structures, such as wires, tubes, and fibers are essential for the fabrication of commercial devices. This paper presents an arbitrary alignment-angle control method. The mechanical stretching of arbitrarily aligned fibers can be increased by as much as 120%. Stretchable electrodes that stably maintain their electro-optical properties against large mechanical deformations are essential for the fabrication of wearable electronics. For randomly distributed fibers, fiber-to-fiber contact resistance has a detrimental effect on the carrier transport. The proposed method aligns fibers into a uniform array to reduce the fiber-to-fiber contact resistance between fibers using parallel-aligned bars. The results demonstrate the feasibility of applying the transfer-free alignment method along a specific alignment-angle for fabricating stretchable metal fiber networks. Fibers are aligned directly onto the sample surface by mounting the alignment jig onto the conventional collecting plate. This transfer-free strategy avoids the deformation and overlap of aligned patterns during the conventional transferring process.
- KSP Keywords
- Aligned fibers, Alignment method, Commercial devices, Contact resistance(73.40.Cg), Electrospun fibers, Metal fiber networks, Stretchable electrode, Uniform Array, Wearable electronics, angle control, carrier transport