Structural, Optical and Impedance Spectroscopic Characterizations of La2Ti2O7 Nanoceramic

La₂Ti₂O₇ nanopowder is prepared through the single step autoignited combustion technique. The structural characterization is performed by X-ray diffraction (XRD) and vibrational spectroscopy. The optical studies are carried out using ultraviolet-visible (UV-Vis) and photoluminescence (PL) spectroscopic techniques. The XRD pattern shows that the structure of the compound is orthorhombic with a crystallite size of approximately 31 nm. Most of the works in the layered perovskite La₂Ti₂O₇ is about their photocatalytic activity; however, the dielectric and electrical properties of La₂Ti₂O₇ were not performed in details. This chapter reports the synthesis of La₂Ti₂O₇ by autoignited combustion. The structure, vibrational and optical spectroscopic studies, and the dielectric and electrical properties of the sample are also reported. The UV-Vis absorption spectra are recorded to characterize the optical absorbance of the sample.