In-Depth Analysis on the Fabry-Perot Effect of Cs₂AgBiBr₆ Double Perovskite-Based Solar Cells via Optical Path Length Modulation

Figure 2

Optical performance of Cs₂AgBiBr₆ double perovskite-based architecture with different absorption layer thicknesses under solar light plane wave illumination. Each top data indicates optical performance without Au electrode, and each bottom data indicates optical performance with Au electrode. (a) 150 nm, (b) 300 nm, (c) 450 nm, and (d) 600 nm.

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