Abstract
We investigate the electronic transport properties of a deoxyribonucleic acid (DNA)-conjugated carbon nanotube (CNT) field effect transistor (CNTFET) device. The CNTFET exhibited a strong decrease of the drain current after DNA conjugation. The observed decrease can be explained by the formation of new scattering centers induced from defects at CNT-DNA binding spots. These surface scattering centers will decrease the transmission probability in CNTs. These results can be applied to biosensors, which detect the amount of conjugated DNA molecules.
| Original language | English |
|---|---|
| Pages (from-to) | 1115-1117 |
| Number of pages | 3 |
| Journal | Physica E: Low-Dimensional Systems and Nanostructures |
| Volume | 40 |
| Issue number | 5 |
| DOIs | |
| State | Published - Mar 2008 |
Keywords
- Carbon nanotube
- Deoxyribonucleic acids
- Field effect transistors