Study of Physicochemical and Optical Characteristics of Doped Barium Titanate Ceramics Materials for Optoelectronic Devices

This research investigates the structural, dielectric, and optical properties of doped barium titanate (BaTiO3) ceramics, highlighting their potential for advanced electronic applications. Barium titanate, a prominent ferroelectric material, was doped with various elements in a systematic manner to improve its functional attributes.The crystalline structure and phase development were described by means of X-ray diffraction (XRD), showcasing how doping affects lattice parameters and phase stability. Dielectric characteristics like loss tangent and permittivity were evaluated across different frequencies and temperatures, revealing the dopants' impact on dielectric behavior and ferroelectric properties. Optical studies, including UV-Vis spectroscopy, examined the bandgap and optical transmittance, which are vital for optoelectronic uses. It is found that targeted doping can effectively modify the structural, dielectric, and optical characteristics of barium titanate ceramics, making them ideal for capacitors, sensors, and other electronic devices. This study offers valuable insights into optimizing barium titanate ceramics to achieve superior performance in various technological applications. It has also been observed that certain dopants reduced the bandgap energy, leading to better optical transparency and tunable refractive indices, which are valuable for optoelectronic applications.