Abstract
The fabrication of pearl-necklace-structured CNT/Co powders, in which spherical Co nanoparticles are threaded into penetrating CNTs, using a polyol-based process, is discussed. The key technology used for the process involves attaching Co atoms to the CNT surfaces in a controlled way by homogenously dispersing the nanotubes in a solvent. The Co nanoparticles are sintered with the CNTs implanted perpendicular to the substrate, thereby standing upright on the surface. The CNT-implanted Co nanocompasite emitters exhibit a low turn-on electric field and produce a high current density due to the low electrical resistance between the CNTs and the metal electrodes.
| Original language | English |
|---|---|
| Pages (from-to) | 553-558 |
| Number of pages | 6 |
| Journal | Advanced Materials |
| Volume | 18 |
| Issue number | 5 |
| DOIs | |
| State | Published - 3 Mar 2006 |
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
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