Progress towards the Automatic Assembly of Carbon Nanotubes by Dielectrophoresis
| Periodical | Advanced Materials Research (Volumes 418 - 420) |
|---|---|
| Main Theme | Materials Processing Technology |
| Edited by | Xianghua Liu, Zhengyi Jiang and Jingtao Han |
| Pages | 731-734 |
| DOI | 10.4028/www.scientific.net/AMR.418-420.731 |
| Citation | Li Jia Feng et al., 2011, Advanced Materials Research, 418-420, 731 |
| Online since | December, 2011 |
| Authors | Li Jia Feng, Li Bao An, Chun Guang Lu, Chen Wei Lu |
| Keywords | Assembly, Carbon Nanotube (CNT), Dielectrophoresis, Process Automation |
| Price | US$ 28,- |
Developing automatic assembly techniques is essential for the application of advanced nanomaterials such as carbon nanotubes (CNTs). This paper presents a review of current research progress towards the automatic assembly of CNTs by dielectrophoresis (DEP). The mechanisms and experimental set-up of three methods for controlled DEP assembly of CNTs are introduced. One is using a limiting resistor to control the electric field after the deposition of a single CNT or a bundle of CNTs. The other two measure electrode gap electrical signals, gap impedance and current respectively, indicating CNT connections to stop the DEP process. The real-time electrical signal monitoring during the DEP process and controlling the DEP using the detected signals represent a research direction in the manipulation of a wide category of nanomaterials and will speed up the industrial applications of the materials.
