Extended Data Fig. 6: Simulation of the diffraction peaks by a, FAPbI3 (a = 6.351 Å, Pm-3m (#221) space group) and b, PbI2 (a = b = 4.555 Å, c = 6.964 Å, P-3m1 (#164) space group) using the Diffraction Pattern Calculator (DPC) toolkit.
From: Perovskite solar cells with atomically coherent interlayers on SnO2 electrodes
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