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. © Springer-Verlag 2009.
| Original language | English |
|---|---|
| Pages (from-to) | 609-617 |
| Journal | Microfluidics and Nanofluidics |
| Volume | 8 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 2010 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- Carbon nanotubes
- Nano-patterning
- Optically induced dielectrophoresis
- Separation