Electron emission measurements from CVD diamond surfaces

Contributors:   S.P. Bozeman, P.K. Baumann, B.L. Ward, M.J. Powers, J.J. Cuomo, D.L. Dreifus, and Robert J. Nemanich

ABSTRACT

Electron emission measurements on diamond films synthesized by chemical vapor deposition are reported. UV photoemission spectroscopy indicates that the samples exhibit a negative electron affinity after exposure to hydrogen plasma. Secondary electron emission yields vary from 2.2 to 9.2. Field emission current-voltage measurements indicate threshold voltages ranging from 28 to 84 V μm-1. The film with the highest secondary yield also exhibits the lowest emission threshold.

Publisher: Diamond and Related Materials,   Volume: 5,   802-806 ||  Published: 1996-05 ||   PDF (493.39 KB) ||   Read more...