Field Emission Characteristics of Composite Cold Cathode Produced with Carbon Nanotubes and C60

Fabrication of carbon nanotubes field emission cathode by composite plating.

Carbon nanotubes (CNTs) have high aspect ratio and have great potential to be applied as the field emission cathode because of its large field enhancement factor. In this work, a high performance carbon nanotube field emission cathode (CNTFC) was fabricated by using a composite plating method. The CNTs were purified by acid solutions and then dispersed in electrobath with nickel ions at tempera...

Composite electrode of carbon nanotubes and vitreous carbon for electron field emission

In this work, the electron field emission behaviour of electrodes formed by carbon nanotubes CNTs grown onto monolithic vitreous carbon VCarbon substrates with microcavities is presented. Scanning electron microscopy was used to characterize the microstructure of the films. Tungsten probes, stainless steel sphere, and phosphor electrodes were employed in the electron field emission study. The C...

Deterministic Cold Cathode Electron Emission from Carbon Nanofibre Arrays

The ability to accurately design carbon nanofibre (CN) field emitters with predictable electron emission characteristics will enable their use as electron sources in various applications such as microwave amplifiers, electron microscopy, parallel beam electron lithography and advanced Xray sources. Here, highly uniform CN arrays of controlled diameter, pitch and length were fabricated using pla...

Part II Field Emission from Carbon Nanotubes

Field emission properties of carbon nanotubes with different morphologies

The field emission behavior of base-model well-aligned carbon nanotubes (Base-CNTs), curled carbon nanotubes (Curled-CNTs), and tipmodel well-aligned CNTs (Tip-CNTs) was examined. The nanotubes were fabricated by means of direct current plasma-enhanced chemical vapor deposition using different ammonia (NH3) pre-treatment plasma currents. The turn-on electric field values required to obtain a 10...