Abstract
Core–shell-structured silver-electroplated nickel microfibers were fabricated via electrospinning and subsequent electroplating for applications including transparent conductive films (TCFs) and heaters. Fabrication protocol generated self-fused junctions at the intersections of overlapping micro-nanofibers. This reduced contact resistance between wires, yielding remarkably high electrical conductivity, which is highly desirable for the aforementioned applications. A very low sheet resistance of less than 0.2 Ω sq −1 with a high transmittance of over 92% was achieved in these structures. A cactus-like morphology of silver-plated microfibers, which dramatically increases surface-to-volume (S/V) ratio and should produce electric field concentration at silver nanowire tips, was also demonstrated. This unique surface morphology could be promising for energy and environmental applications that require large interfacial areas and electric field concentration, but yielded lower transmittance than smooth wires. These cactus-like microfibers were further coated with Cu and Pt to produce hierarchically-structured multimetallic microfibers. The low-resistivity transparent silver micro-nanofiber films exhibited good heating and mechanical properties, as demonstrated in bending and stretching tests. A record high temperature of 209 °C was achieved with a transparent heater based on the Ag microfibers.
| Original language | English |
|---|---|
| Pages (from-to) | 1127-1136 |
| Number of pages | 10 |
| Journal | Journal of Alloys and Compounds |
| Volume | 790 |
| DOIs | |
| Publication status | Published - 2019 Jun 25 |
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Keywords
- Core-shell fibers
- Flexible electronics
- Silver-plated fibers
- Transparent conducting films and heaters
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Cite this
Highly transparent, conducting, body-attachable metallized fibers as a flexible and stretchable film. / Kim, Yong Il; An, Seongpil; Kim, Min Woo; Jo, Hong Seok; Kim, Tae Gun; Swihart, Mark T.; Yarin, Alexander; Yoon, Suk Goo.
In: Journal of Alloys and Compounds, Vol. 790, 25.06.2019, p. 1127-1136.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Highly transparent, conducting, body-attachable metallized fibers as a flexible and stretchable film
AU - Kim, Yong Il
AU - An, Seongpil
AU - Kim, Min Woo
AU - Jo, Hong Seok
AU - Kim, Tae Gun
AU - Swihart, Mark T.
AU - Yarin, Alexander
AU - Yoon, Suk Goo
PY - 2019/6/25
Y1 - 2019/6/25
N2 - Core–shell-structured silver-electroplated nickel microfibers were fabricated via electrospinning and subsequent electroplating for applications including transparent conductive films (TCFs) and heaters. Fabrication protocol generated self-fused junctions at the intersections of overlapping micro-nanofibers. This reduced contact resistance between wires, yielding remarkably high electrical conductivity, which is highly desirable for the aforementioned applications. A very low sheet resistance of less than 0.2 Ω sq −1 with a high transmittance of over 92% was achieved in these structures. A cactus-like morphology of silver-plated microfibers, which dramatically increases surface-to-volume (S/V) ratio and should produce electric field concentration at silver nanowire tips, was also demonstrated. This unique surface morphology could be promising for energy and environmental applications that require large interfacial areas and electric field concentration, but yielded lower transmittance than smooth wires. These cactus-like microfibers were further coated with Cu and Pt to produce hierarchically-structured multimetallic microfibers. The low-resistivity transparent silver micro-nanofiber films exhibited good heating and mechanical properties, as demonstrated in bending and stretching tests. A record high temperature of 209 °C was achieved with a transparent heater based on the Ag microfibers.
AB - Core–shell-structured silver-electroplated nickel microfibers were fabricated via electrospinning and subsequent electroplating for applications including transparent conductive films (TCFs) and heaters. Fabrication protocol generated self-fused junctions at the intersections of overlapping micro-nanofibers. This reduced contact resistance between wires, yielding remarkably high electrical conductivity, which is highly desirable for the aforementioned applications. A very low sheet resistance of less than 0.2 Ω sq −1 with a high transmittance of over 92% was achieved in these structures. A cactus-like morphology of silver-plated microfibers, which dramatically increases surface-to-volume (S/V) ratio and should produce electric field concentration at silver nanowire tips, was also demonstrated. This unique surface morphology could be promising for energy and environmental applications that require large interfacial areas and electric field concentration, but yielded lower transmittance than smooth wires. These cactus-like microfibers were further coated with Cu and Pt to produce hierarchically-structured multimetallic microfibers. The low-resistivity transparent silver micro-nanofiber films exhibited good heating and mechanical properties, as demonstrated in bending and stretching tests. A record high temperature of 209 °C was achieved with a transparent heater based on the Ag microfibers.
KW - Core-shell fibers
KW - Flexible electronics
KW - Silver-plated fibers
KW - Transparent conducting films and heaters
UR - http://www.scopus.com/inward/record.url?scp=85063524818&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85063524818&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2019.03.154
DO - 10.1016/j.jallcom.2019.03.154
M3 - Article
AN - SCOPUS:85063524818
VL - 790
SP - 1127
EP - 1136
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -