NUCLEATION ENHANCEMENT OF DIAMOND FILMS BY ION BOMBARDING AND ELECTRON EMITTING EFFECTS

Applying a proper negative bias-voltage onto the substrate, on which diamond lilm is deposited by chemical vapor deposition technique, can greatly improve the nucleation density. While nucle-ation enhancing, both the ion bombardment and electron emission may play an important role sepa-rately. However, for the highest nucleation density, both of the two effects must act together.