Manipulation and patterning of carbon nanotubes utilizing optically induced dielectrophoretic forces |
| |
Authors: | Ming-Wei Lee Yen-Heng Lin Gwo-Bin Lee |
| |
Affiliation: | (1) Department of Engineering Science, National Cheng Kung University, Tainan, 701, Taiwan; |
| |
Abstract: | This study reports an optically driven platform upon which the manipulation and patterning of carbon nanotubes (CNTs) can
be accomplished. A photoconductive layer made of amorphous silicon generates a nonuniform electric field within the developed
platform at specific optically illuminated sites, which are usually referred to as “virtual electrodes,” that induces dielectrophoretic
forces for manipulating the CNTs. The software-controlled light patterns enable a variety of flexible manipulation modes since
it is now possible to dynamically reconfigure the optically projected electrode patterns. This approach allows for real-time
manipulation and miscellaneous patterning of CNTs. The sorting and separation of bundled and dispersed CNTs is also demonstrated.
This developed platform may be promising for rapid fabrication of CNT-based nanosensors together with nanoelectronics, purification
as well as classification of synthesized CNTs and other applications requiring nanoscale manipulation. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|