MICRO-RAMAN STUDY OF BATIO3 THIN-FILMS PREPARED BY THE METALLOORGANICDECOMPOSITION TECHNIQUE

A micro-Raman probe was used to characterize thin films of barium tita nate synthesized by metallo-organic decomposition and rapid thermal an nealing techniques. All films were found to be polycrystalline aggrega tes with perovskite as the primary phase. The optimum film processing procedure as evidenced by the micro-Raman probe was a combination of r apid thermal annealing at 950-degrees-C in an oxygen or argon atmosphe re. Fourier transform infrared spectra indicated that samples annealed in a vacuum show higher carbon contamination than those receiving the same heat treatment in an oxygen or argon atmosphere.