中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 19 Special 1 September 2009 |
using dielectrophoresis of DC-pulse voltage
（1. Gyeongbuk Hybrid Technology Institute, Gyeongbuk, 770-170, Korea;
2. School of Mechanical Engineering, Pusan National University, Busan, 609-735, Korea;
3. Department of Nanosystem and Nanoprocess Engineering, Pusan National University, Busan, 609-735, Korea）
Abstract:Single carbon nanotubes (CNTs) are candidates for a number of electronics and sensing applications, provided that single CNTs can be separated from a bundle of CNTs in suspension. Dielectrophoresis has recently been demonstrated as one route for the extraction of desired CNTs. However, previous methods using dielectrophoresis have found it difficult to extract single nanotubes from bundles of CNTs in solution. Here, we show that this restriction can be overcome by using pulsed DC voltage of an electric field, instead of regular AC and DC voltages.
Key words: carbon nanotubes; dielectrophoresis; COMSOL; pulsed DC
