Large reduction in electrical contact resistance of flexible carbon nanotube/silicone rubber composites by trifluoroacetic acid treatment
We report a large reduction in contact resistance between stretchable carbon nanotube/silicone rubber composites and silver electrodes by a chemical surface treatment, accompanied by an enhancement in the electrical conductivity of the composites. The reactive solvent, trifluoroacetic acid, works fo...
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| Veröffentlicht in: | Composites science and technology 2017-05, Vol.143, p.98-105 |
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| container_title | Composites science and technology |
| container_volume | 143 |
| creator | Lee, Sang-Eui Jee, Sang Soo Park, Hyokeun Park, Sung-Hoon Han, Intaek Mizusaki, Soichiro |
| description | We report a large reduction in contact resistance between stretchable carbon nanotube/silicone rubber composites and silver electrodes by a chemical surface treatment, accompanied by an enhancement in the electrical conductivity of the composites. The reactive solvent, trifluoroacetic acid, works for the purpose. In addition, the treatment makes a uniform etching in a micro level with little sacrifice in surface roughness of the nanocomposites. The electrical conductivity of 1.0 wt% nanotube composite was enhanced approximately two-fold and three-fold by ten- and thirty-second treatment, which was induced by the reduction in the contact resistance to one half of an original value. It is meaningful that our finding can be an approach to reduce the nanoparticle loading while keeping electrical conductivity in a high level, which can be crucial for securing flexibility or stretchability in a viewpoint that the elongation is inversely proportional to the conductive particle loading. |
| doi_str_mv | 10.1016/j.compscitech.2017.03.004 |
| format | Article |
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| identifier | ISSN: 0266-3538 |
| ispartof | Composites science and technology, 2017-05, Vol.143, p.98-105 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Carbon nanotube Composite materials Contact resistance Electric contacts Electric resistance Electrical contact resistance Electrical resistance Electrical resistivity Elongation Etching Flexible composite Nanocomposites Nanotubes Reduction Silicone rubber Silicones Stretchability Stretchable composite Studies Surface roughness Surface treatment Trifluoroacetic acid |
| title | Large reduction in electrical contact resistance of flexible carbon nanotube/silicone rubber composites by trifluoroacetic acid treatment |
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