Figure 8

(a) Absorbance and (b) Kubelka–Munk spectrum from diffuse reflectance measurements of δ-FAPbI3, MAPbI3, and FA1-xMAxPbI3, where x = (0.3, 0.5, 0.7), perovskite samples.

(a) Absorbance and (b) Kubelka–Munk spectrum from diffuse reflectance measurements of δ-FAPbI3, MAPbI3, and FA1-xMAxPbI3, where x = (0.3, 0.5, 0.7), perovskite samples.