Mv. Ugarov et al., UV laser induced interfacial synthesis of CN-BCN layers on diamond films in borazine and ammonia, APPL SURF S, 139, 1999, pp. 359-363
Experimental results on ArF laser treatment of nanocrystalline diamond film
s in borazine (B3N3H6) and ammonia (NH3) vapors are reported. It is shown t
hat pulsed UV irradiation results in boron and/or nitrogen atoms intergrain
diffusion into the film along with surface synthesis of continuous ultra-t
hin BCN and CN compound layers, respectively. A significant reduction of el
ectron field emission thresholds as a result of this treatment was observed
. This effect is shown to be not connected with laser surface graphitizatio
n or formation of bulk defects. (C) 1999 Elsevier Science B.V. All rights r
eserved.