Abstract:
The vibrational mode for the cubic symmetry of boron nitride (BN) has been produced by boron ion
implantation of hexagonal boron nitride (h-BN). The optimum fluence at 150 keV was found to be
5 Â 1014 ions/cm2. The presence of the c-BN phase was inferred using glancing incidence XRD (GIXRD)
and Fourier Transform Infrared Spectroscopy (FTIR). After implantation, Fourier Transform Infrared Spec-
troscopy indicated a peak at 1092 cmÀ1 which corresponds to the vibrational mode for nanocrystalline
BN (nc-BN). The glancing angle XRD pattern after implantation exhibited c-BN diffraction peaks relative
to the implantation depth of 0.4 lm.
