fig3

Figure 3. The construction of perovskite bandgap database. (A) Heat maps of predicted bandgap of FA_1-yCs_yPb(I_1-xBr_x)₃, MA_1-yCs_yPb(I_1-xBr_x)₃, and FA_1-yMA_yPb(I_1-xBr_x)₃; (B) The comparison between predicted bandgaps and experimental bandgaps; (C) The mixed halide perovskites in database.