| 摘要 |
The invention relates to a carbon-containing nanomaterial and to methods for the production thereof for field electron emitting devices. Said invention makes it possible to produce materials having a low field electron emission threshold and to simplify the methods for the production thereof. The inventive carbon-containing nanomaterial is made in the form of a dispersed powder, the particles of which have size less than 50 mkm and consist of a core and a surface layer, the core being made of dielectric or semiconductor material and the surface layer being made of a graphite-like material. The thickness of the layer is of 0.5-50 nm. The methods for producing the carbon-containing nanomaterial consist in thermally deposing a carbon layer on the surface of the core made of the dielectric or semiconductor material in the capacity of which diamond, boron or silicon nitrides and carbides, silicon oxide and silicon can be used, wherein the above-mentioned deposition is carried out in a hydrocarbon or chlorine or inert or vacuum medium at respective temperature and time values. |
