| 摘要 |
<p>In an electron-emitting component with a cold cathode comprising a substrate and a cover layer with a diamond-containing material consisting of nano-crystalline diamond having a Raman spectrum with three lines, i.e. at K = 1334 ± 4 cm-1 with a half-width value of 12 ± 6 cm-1, at K = 1140 ± 20 cm-1 and at K = 1470 ± 20 cm-1, the cold cathode exhibits a low extraction field strength, a stable emission at pressures below 10-4 mbar, a steep current-voltage characteristic and stable emission currents in excess of 1 microampere/mm2. The electron emission of the component demonstrates a long-time stability, and a constant intensity of the electron beam across its cross section.</p> |
