Abstract
By applying a critical field treatment instead of the conventional surface treatments such as soft rubber roller, ion beam irradiation, adhesive taping, and laser irradiation, electron emission properties of screen-printed carbon nanotubes (CNTs) were enhanced and investigated based on the emission current-voltage characteristics through scanning electron microscopy. After nanotube emitters were activated at the applied electric-field of 2.5 V/um, the electron emission current density with good uniform emission sites reached the value of 2.13 mA/cm2, which is 400 times higher than that of the untreated sample, and the turn-on voltage decreased markedly from 700 to 460 V. In addition, enhancement of the alignment of CNTs to the vertical direction was observed.
| Original language | English |
|---|---|
| Pages (from-to) | 45-48 |
| Number of pages | 4 |
| Journal | Journal of Information Display |
| Volume | 6 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2005 |
Keywords
- Carbon nanotube
- Field-emission
- Screen-printing
- Surface treatment
ASJC Scopus subject areas
- General Materials Science
- Electrical and Electronic Engineering