fig8

Figure 8. Model prediction and evaluation on synthesized perovskite thin film. (A) Description of A, B, and X in desired ABX₃-type perovskite and explanation to ΔH and ΔL. (B) Predicted bandgap value versus experimental benchmark. (C, D) Bandgap rationalizes Cs/MA/FAPbI₃ and Cs/MA/FASnI₃ based on different Cs/MA/FA ratio. (E) Predicted PCE based on optimal values, implying that the highest PCE values are between 1.2 and 1.3 eV of bandgap with small ΔH and ΔL. (F) Comparison between PCE from Shockley and Queisser theory and maximum PCE from the model. (G, H) experimental ΔH, ΔL preference, and prediction map preference. (I, J) PCE map with ΔH and ΔL when E_g = 1.2 eV and E_g = 1.8 eV. Copyright from Wiley^[63].