Carbon nanotubes have been grown on silicon substrates coated with nickel-catalyst films by chemical-vapor deposition using mixtures of acetylene and nitrogen. An effective aging treatment was carried out before the field-emission measurement of carbon-nanotube samples. The results show that the turn-on field is 1.8V∕μm at 2μA emission current and that the highest emission current of 13mA at the electrical field of 23V∕μm. This corresponds to the field-emission current density of 414mA∕cm2. Some discussions about the long growing time of carbon nanotubes, the aging process, and high-current field emission are given.
No takes yet. Share an insight, caveat, or question.
Mu et al. (2007) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: