U.S. Philips Corporation

Forschungszentrum Julich Gmbh

Klaus Rademacher

Detlef Uwe Wiechert

Peter K Bachmann

Howard J Wilson

Christoph Buchal

Olaf Hollricher

Jens Peter Hermanns

Elard Stein Von Kamienski

Frank Ruders

Hartmut Roskos

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.sup.-1 with a half-width value of 12.+-.6 cm.sup.-1, at K=1140.+-.20 cm.sup.-1 and at K=1470.+-.20 cm.sup.-1, the cold cathode exhibits a low extraction field strength, a stable emission at pressures below 10.sup.-4 mbar, a steep current-voltage characteristic and stable emission currents in excess of 1 microampere/mm.sup.2. The electron emission of the component demonstrates a long-time stability, and a constant intensity of the electron beam across its cross-section.

Electron emitter with nano-crystalline diamond having a Raman spectrum

Optoelectronic diode and component containing same

Growing community of inventors

Munich, Georgia

Klaus Rademacher