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

✍ Scribed by Byeongju Kim; Jiwoon Im; Byung Yang Lee; Moon Gyu Sung; Kwang Heo; Jung Hoon Bak; Yun Daniel Park; Seunghun Hong

• Book ID: 104009514
• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 520 KB
• Volume: 49
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/j.carbon.2011.02.044

✦ Synopsis

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.