Research Article
Effect of Annealing Process on CH3NH3PbI3-XClX Film Morphology of Planar Heterojunction Perovskite Solar Cells with Optimal Compact TiO2 Layer
Figure 8
Top view SEM images of CH3NH3PbI3-XClX films deposited on the c-TiO2 layer with two different annealing programs, (a) MS slow and (c) OS direct annealing method. (b) and (d) are the enlarged images of the selected rectangular areas of (a) and (c), respectively.
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