Carbon nanotube–metal nano-laminate for enhanced mechanical strength and electrical conductivity

There have been extensive efforts to improve the properties of conventional metals such as electrical conductivity and rigidity. Here, we report a massive fabrication strategy for metal–carbon nanotube (CNT) laminate-based electrodes. In this method, CNTs were assembled by directed assembly strategy...

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Bibliographic Details
Published in:Carbon (New York) 2011-06, Vol.49 (7), p.2549-2554
Main Authors: Kim, Byeongju, Im, Jiwoon, Lee, Byung Yang, Sung, Moon Gyu, Heo, Kwang, Bak, Jung Hoon, Park, Yun Daniel, Hong, Seunghun
Format: Article
Language:English
Subjects:
Carbon
Cross-disciplinary physics: materials science
rheology
Electrical conductivity
Electrical resistivity
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
Laminates
Materials science
Nanocomposites
Nanomaterials
Nanostructure
Physics
Resistivity
Specific materials
Strategy
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Summary:There have been extensive efforts to improve the properties of conventional metals such as electrical conductivity and rigidity. Here, we report a massive fabrication strategy for metal–carbon nanotube (CNT) laminate-based electrodes. In this method, CNTs were assembled by directed assembly strategy and a thin metal layer was formed by electrodeposition process, and those processes were repeated several times to fabricate multilayered structures. We demonstrated that metal–CNT laminates showed 42% enhancement in the conductivity compared to electrodeposited metals. Furthermore, its Young’s modulus was found to be 88% higher than pure bulk metals. Interestingly, the fabricated structures show I– V characteristics of metal wires while exhibiting typical noise characteristics of CNTs. Since our method uses only conventional microfabrication facilities, it can be readily used by the present microfabrication industry.
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2011.02.044