Nanofilms with clusters of boron suboxide and their infrared absorption

Boron suboxide films containing B6O have been prepared by pulsed laser depo sition. Different kinds of characterizations were performed: TEM and SEM fo r the observation of the structure morphology; IR absorption and Raman scat tering 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 splitti ng vibration of B-1-B-1 inter-icosahedral bonding in the rhombohedral cell. The active vibrational modes are found to be affected only by the temperat ure of substrates during the preparation. (C) 2000 Elsevier Science Ltd. Al l rights reserved.