Controlled assembly of single SWNTs bundle using dielectrophoresis

• Published in: Microelectronic engineering Vol. 81; no. 1; pp. 83 - 89
• Main Authors: Seo, Hee-Won, Han, Chang-Soo, Choi, Dae-Geun, Kim, Keun-Soo, Lee, Young-Hee
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.07.2005; Elsevier Science
• Subjects: Applied sciences; Assembly; Carbon nanotube; Dielectrophoresis; Electronics; Exact sciences and technology; Molecular electronics, nanoelectronics; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Carbon nanotube; Dielectrophoresis; 85.35.Kt; 82.47.Rs; Assembly; 85.85.+j; 82.47.Rs Carbon nanotube; Singlewalled nanotube; Electric field; Nanotube devices; Electronic component; Carbon nanotubes; Joining; Nanoelectronics
• ISSN: 0167-9317; 1873-5568
• DOI: 10.1016/j.mee.2005.04.001

We present a mass productive and reproducible assembly technique of a single bundle of single-walled carbon nanotubes (sb-SWNTs) using dielectrophoresis (DEP). Gold electrodes with 10 gaps made via microlithography were used to align the carbon nanotubes (CNTs). The magnitude and type of applied electric field were investigated to verify their effects on CNT assembly. The optimum assembling conditions in which sb-SWNTs could be positioned at a desired site were experimentally identified, and the characteristics of the assembled sb-SWNTs were evaluated from AFM, Raman spectroscopy, and I–V curve. This assembly method has potential for applications, such as gas sensors or electronic devices.