Electromechanical Enhancement of Metal Nanoparticle Thin Film by Composite Formation with Short Metal Nanowires

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Recently, metal nanoparticle (NP) based ink solutions are widely used for fabricating flexible electronic devices due to many advantages such as low temperature process, simple and low-cost manufacturing, and compatibility with various flexible substrates. The electromechanical characteristics of metal NP thin films on flexible substrates are very important because they often operate under various mechanical loading conditions. Here, we report an improvement of electromechanical properties of silver (Ag) NP thin films by composite formation with short Ag nanowires (Ag NWs). We fabricated Ag NP-Ag NW hybrid thin films on the flexible polymer substrates, which presented more reliable electromechanical characteristics than the Ag NP thin film. From in situ scanning electron microscope images, we observed a bridging behavior of Ag NWs inhibiting the growth of cracks on the surface as well as in the inside of hybrid thin films. The improvement of electromechanical characteristics by composite formation with short Ag NWs could be also observed in the microscale line patterns, both in the static and cyclic tensile loading conditions.
Publisher
Korean Society for Composite Materials
Issue Date
2019-09
Language
English
Citation

Functional Composites and Structures, v.1, no.3

DOI
10.1088/2631-6331/ab3d9c
URI
http://hdl.handle.net/10203/270396
Appears in Collection
ME-Journal Papers(저널논문)EEW-Journal Papers(저널논문)
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