Ceiling of Barium Substitution for B-Site Cation in Organometal Halide Perovskite Solar Cells

<div>Optical property of FA<sub>x</sub>MA<sub>1-x</sub>Pb<sub>0.85</sub>Ba<sub>0.15</sub>I<sub>3-y</sub>Cl<sub>y</sub> film: (a) absorption spectrum and (b) corresponding Tauc plot for energy bandgap calculation.</div>

International Journal of Energy Research

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Figure 2

Figure 2: Ceiling of Barium Substitution for B-Site Cation in Organometal Halide Perovskite Solar Cells 