Optical and Structural Properties of Rutile Nanoparticles Prepared Via Ball Milling

This study centered on determining the optical characteristics of Rutile nanoparticles and synthesizing them using a ball milling process. A top-down approach was utilized to obtain nanoparticles from the bulk materials utilizing high intensity ball milling technique. The crystalline size of the nanoparticle was ascertained using the Debye-Scherer formula. The Energy Band gap, optical conductivity, extinction coefficient, transmittance, and refractive index were among the optical characteristics that were identified. The average crystalline size obtained, was 87.440 nm. The computed dislocation density varied between (0.109x10-3 to 0.0359x10-3 ) nm-2. As the wavelength range shifted from the ultraviolet to the visible and near-infrared regions, the absorbance value was observed to decrease simultaneously. The refractive index of the particle showed a uniform result from 1eV to 4eV but sharply increased at 4.1eV and also dropped sharply at 4.3eV and then maintained a uniform outcome as the photon energy increased. The transmittance value was also observed to gradually increase from the ultraviolet region, to the visible region, hence reaching 99.9% in the near-infrared region. Furthermore, the band energy gap was obtained to be 3.88 eV. The unique properties of the Rutile nanoparticles revealed potential uses in photovoltaic and optoelectronic systems.