METHOD FOR PREPARING NANO-CARBON AND NANO-CARBON PREPARED BY SUCH METHOD AND COMPOSITE MATERIAL OR MIXED MATERIAL CONTAINING NANO-CARBON AND METAL FINE PARTICLE APPARATUS FOR PREPARING NANO-CARBON METHOD FOR PATTERNING NANO-CARBON AND NANO-CARBON BASE MATERIAL PATTERNED BY THE USE OF SUCH METHOD AS WELL AS ELECTRON EMISSION SOURCE USING SUCH PATTERNED NANO-CARBON BASE MATERIAL

摘要

PURPOSE: Provided are a method for preparing nano-carbon and nano-carbon prepared by making use of such method, and a composite material or mixed material containing nano-carbon, an apparatus for preparing nano-carbon, a method for patterning nano-carbon and a nano-carbon base material patterned by making use of such method, and an electron emitting source using such a patterned nano-carbon base material. CONSTITUTION: The apparatus for preparing nano-carbon comprises electrodes holding in an atmosphere or air at a given interval a first electrode(10), and a second electrode(2) containing as a main component a carbon material or an additive-containing carbon material, or a carbon material on the surface of which is formed an additive; an arc generating unit(5) comprising an electrode for applying voltage between the first electrode and the second electrode to generate arc discharge by which the carbon material is evaporated to generate nano-carbon-containing soot; a unit(6) for supplying specific gas in the arc discharge-generating area; and a recovering unit(3) for recovering the soot.