Low work function diamond surface

A method for producing a low work function surface on any material electrode that incorporates diamond.

The efficiency of a thermionic device can be improved by changing the structure of the cathode emitter. In doing this it is desirable to produce a surface with a lower work function and which can also operate at lower temperatures. The Bristol invention is a simple method of producing such as surface on materials that incorporate diamond or diamond-like particle layers or coatings. The method may be advantageously applied to the fabrication of many types of vacuum device employing electrodes to significantly improve the efficiency with which they produce a source of electrons.

Download more information here (PDF, 257kB) or contact rosalind.darby@bristol.ac.uk