Abstract
Field emission of single-walled carbon nanotubes (SWCNTs) and polyaniline mixture was studied. We first dissolved the SWC-NTs and polyaniline in N-methy-2-pyrrolidone (NMP). Next, we put a few drops of the solution on Si wafer and apply electrical field normal to the wafer surface. Finally let it dry for several days in air. Large number of small islands, 2-5 μm in diameter, formed uniformly on the wafer surface. The onset field of the islands in field emission was found to be 8.1 V/μm. Interesting finding is that no screening effect was observed on phosphorus screen, and its field emission is better than that of the continuous film. Moreover, external electric field applied in film growth considerably improves its field emission characteristics.
| Original language | English |
|---|---|
| Journal | Zhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology |
| Volume | 25 |
| Issue number | SUPPL. |
| Publication status | Published - 1 Dec 2005 |
| Externally published | Yes |
Keywords
- Carbon nanotubes
- Enhancement factor of electric field
- Field emission
- Onset field
- Polyaniline
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Surfaces and Interfaces