Abstract: The processing method in perovskite solar cells plays an important role in film layer roughness, suppressing morphological defects such as voids and improving the structural formation of perovskite-based absorber. In this study, the perovskite absorber layers were prepared by dipping and loading based on two-step method. FTO substrate etching, compact TiO2 and mesoporous TiO2 preparation, lead iodide (PbI2) preparation and annealing conditions remain the same using the two thin film growth methods. X-ray diffraction (XRD), Atomic Force Microscope (AFM), and Field emission scanning electron microscope (FESEM) were used to characterize the CH3NH3PbI3 layers for each technique. The CH3NH3PbI3/mp-TiO2/c-TiO2/FTO/glass fabricated by loading shows surface roughness and root.............
Keywords: absorber layer, deposition, halide perovskite, lead, two-step technique.
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