Research Article

Effect of Annealing Process on CH3NH3PbI3-XClX Film Morphology of Planar Heterojunction Perovskite Solar Cells with Optimal Compact TiO2 Layer

Figure 4

Top view SEM images of CH3NH3PbI3-XClX films deposited on the c-TiO2 layer with diverse OS annealing temperatures. (a) 90°C, (b) 100°C, (c) 110°C, (d) 120°C, and (e) 130°C.
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