Abstract
The authors report excellent electron field emission characteristics from acid-oxidized multiwalled carbon nanotubes printed onto paper substrates and subjected to a postdeposition laser treatment. A distinct change in the morphology of the nanotube layer was observed after laser irradiation, and threshold fields improved from 4.8 V/μm before laser irradiation to 2.1 V/μm after laser irradiation. This study shows how field emission cathodes can be fabricated in a straightforward manner on cheap, flexible substrates and that the field emission characteristics can be tailored readily via postdeposition laser treatment.
| Original language | English |
|---|---|
| Pages (from-to) | 1068-1071 |
| Number of pages | 4 |
| Journal | Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics |
| Volume | 27 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 24 Apr 2009 |
Funding
The authors would like to thank EPSRC (U.K.) for funding this research via the CBE and Portfolio Partnership awards.
Keywords
- surface collision
- carbon based materials
- laser beam effects
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