Synthesis, Structure and Field Emission of Carbon Nanotubes
- 1 July 1999
- journal article
- research article
- Published by Taylor & Francis in Fullerene Science and Technology
- Vol. 7 (4), 653-664
- https://doi.org/10.1080/10641229909351368
Abstract
Multiwall and single-wall nanotubes were produced by carbon arc discharge in helium, and their structures were investigated by electron microscopy. Field emission from (1) as-grown multiwall nanotubes (MWNTs), (2) purified MWNTs and (3) purified single-wall nanotubes (SWNTs) was investigated by field emission microscopy. Of the three kinds of nanotubes studied, purified MWNTs whose tips are open provided the highest current at a fixed voltage. Although purified SWNTs provided the second highest current, SWNTs are not so robust as MWNTs against ion bombardment. As an application of nanotube field emitters, we manufactured cathode ray tube (CRT) lighting-elements by replacing conventional thermionic cathodes with nanotube field emitters. Stable electron emission, adequate luminance, and long life of the emitters were substantiated.Keywords
This publication has 17 references indexed in Scilit:
- Field emission from nanotube bundle emitters at low fieldsApplied Physics Letters, 1997
- Thin films consisting of carbon nanotubes as a new material for emission electronicsApplied Surface Science, 1997
- A simple and robust electron beam source from carbon nanotubesApplied Physics Letters, 1996
- A Carbon Nanotube Field-Emission Electron SourceScience, 1995
- Unraveling Nanotubes: Field Emission from an Atomic WireScience, 1995
- Carbon nanocapsules encaging metals and carbidesJournal of Physics and Chemistry of Solids, 1993
- Single-shell carbon nanotubes of 1-nm diameterNature, 1993
- Cobalt-catalysed growth of carbon nanotubes with single-atomic-layer wallsNature, 1993
- Large-scale synthesis of carbon nanotubesNature, 1992
- Helical microtubules of graphitic carbonNature, 1991