Nanofilms with clusters of boron suboxide and their infrared absorption

Boron suboxide films containing B6O have been prepared by pulsed laser deposition. Different kinds of characterizations were performed: TEM and SEM for the observation of the structure morphology; IR absorption and Raman scattering for the analysis on the optical properties of the films. IR spectra show two peaks at 2850.27 and 2917.77 cm−1, which result from the splitting vibration of B1–B1 inter-icosahedral bonding in the rhombohedral cell. The active vibrational modes are found to be affected only by the temperature of substrates during the preparation.