Fabrication and structural property of diamond nano-platelet arrays on {111) textured diamond film

Abstract

Diamond nano-platelet (DNP) arrays have been grown on {111} textured diamond film by using micro-wave plasma enhanced chemical vapor deposition system. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) have been used to characterize the growth behavior and micro-structure of DNP arrays on diamond film. According to the results of SEM and TEM images, DNP arrays only appear on the {111} surfaces of underlying diamond grains. Both DNPs and underlying diamond grains comprise penetration {111} twin structures. The growth of DNPs is the extension of the penetration {111} twins from underlying diamond grains. The accommodation and glide of stacking faults can also evolve into perfect {111} twin structures during the growth of DNPs. (C) 2012 Elsevier B.V. All rights reserved.