The electron field emission from both diamond-like carbon(DLC) and nitrogen
doped diamond-like carbon films by ion implantation,was studied. The DLC f
ilms were deposited on a molybdenum layer coated on ceramic by using pulsed
laser deposition. The field emission measurements show that;the incorporat
ion of nitrogen in DLC films can increase current density and lower the tur
n-on field from 9 to 4 V/mu m, which indicate that the nitrogen doped DLC f
ilms have a potential application as field emission materials for fiat pane
l displays.