Spectroscopic Study of Bi5Ti3FeO15 Aurivillius Compound for Multifunctional Applications

Due to their semiconducting, ferroelectric, and antiferromagnetic properties at room temperature and manipulative magnetic states, the functions of multiferroic ceramics were extensively investigated for various technological applications, including quantum controlling, signal processing, and information storage. However, much less attention has been dedicated to the compound potential as a gas sensor, particularly for harmful gases. The aurivillius Bi5Ti3FeO15 phase presented in this study was synthesized using the solid-state method and analyzed spectroscopically using confocal Raman and vacuum-based Fourier transform infrared absorption. If the development of a high-performance bismuth iron titanate for sensing applications is envisioned, these throughout investigations of the compound phonon modes, as well as of its constituents Bi2O3, TiO2, and Fe2O3, besides reveling structural changes, demonstrate the usefulness of these characterizations in estimating the quality of the material.