| 摘要 |
To provide a field electron emission film that is capable of being operated with low electric power and enhancing the uniformity in luminance within the light emission surface, a field electron emission device and a light emission device using the same, and methods for producing them. Solution to Problem A field electron emission film containing from 60 to 99.9% by mass of tin-doped indium oxide and from 0.1 to 20% by mass of carbon nanotubes, having such a structure that grooves having a width in a range of from 0.1 to 50 µm are formed in a total extension of 2 mm or more per 1 mm 2 on a surface of the film, and carbon nanotubes are exposed on a wall surface of the grooves. After forming an ITO film containing carbon nanotubes on a substrate, grooves are formed on a surface of the ITO film, and the end portions of the carbon nanotubes exposed to the wall surface of the grooves are designated as an emitter. |
