Effect of Perovskite Film Preparation on Performance of Solar Cells

<div>Top-view SEM images of the PbI<sub>2</sub> layers deposited on the mp-TiO<sub>2</sub> coated FTO substrate, where the substrate was preheated at (a) RT (without preheating), (b) 30°C, (c) 50°C, (d) 70°C, and (e) 100°C. The MAPbI<sub>3</sub> thin film layers (f–j) correspond to the PbI<sub>2</sub> layers deposited on the different preheating substrate.</div>

Journal of Chemistry

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Figure 2

Figure 2: Effect of Perovskite Film Preparation on Performance of Solar Cells 