SYNTHESIS AND OPTICAL CHARACTERIZATION OF PEROVSKITE LAYER AND TiO2 LAYER FOR SOLAR CELL APPLICATION

Abstract

This work focuses on the synthesis and characterization of a thin perovskite layer and TiO₂ layer for solar cell application. To this end, a novel organometal halide perovskite was synthesized by a solution-process. The perovskite layer was characterized using optical spectroscopy, and the results were used to determine the optical properties of the layer. The TiO₂ layer was formed by chemical bath deposition method from a 70mm solution of titanium tetrachloride,and the optical properties were determined by UV-visible spectroscopy.The results of the study show a good agreement in terms of absorbance, transmittance and reflectance values. The optical bandgap of the perovskite layer was confirmed to be approximately 1.7 eV. The TiO₂ layer exhibited good optical absorption properties across the visible and UV range, with a bandgap of approximately 2.0 eV. The combination of the two layers showed good optical properties ideal for photovoltaic applications. Overall, the study provides insight into the synthesis and characterization of a thin perovskite layer and TiO₂ layer for solar cell application. The combined properties of the layers were found to be acceptable for photovoltaic applications. Further studies are needed to explore the optimization of the layers for different photovoltaic devices.