METHOD FOR PRODUCING NANO-CARBON MATERIAL COMPOSITE SUBSTRATE, NANO-CARBON MATERIAL COMPOSITE SUBSTRATE, ELECTRON EMISSION ELEMENT, AND LIGHTING LAMP

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a nano-carbon material composite substrate which can suitably perform electric field concentration on a nano-carbon material which forms a film on the substrate.SOLUTION: The method for producing the nano-carbon material composite substrate includes releasing a part of a catalyst layer before forming the nano-carbon material to form a spot. Since the nano-carbon material is produced from a remaining part of the catalyst layer, a spot in which the nano-carbon material is not present is present very near the produced nano-carbon material. Therefore, a nano-carbon material composite substrate provided with many edge parts composed of a nano-carbon material on which an electric field tends to concentrate can be produced.