A stable high power carbon nanotube field-emitter device (original) (raw)

We report a new fabrication process for carbon nanotube field emitters with high performance and their superior emission properties. The process employs spin-on-glass coating and chemical-mechanical polishing to realize mechanical stability and leveling of the carbon nanotubes. The morphology of the emitter devices revealed a high stability and performance in the emission properties. Particularly in the device scale measurement, an absolute turn-on voltage of 4.5 V was measured, which corresponds to a turn-on voltage per distance less than 1.5 Vymm. The device also revealed an extremely high current density of ;3 Aycm . 2 This value was observed from the proximity of the electrode to the tip of the carbon nanotubes. ᮊ