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Table 6 Elemental distribution (atomic %) of the individual elements observed on (CH3NH3)3SbBiI9/NiO substrate shown in Fig. 4f

From: Lead-free perovskite solar cells using Sb and Bi-based A3B2X9 and A3BX6 crystals with normal and inverse cell structures

Spot Antimony Bismuth Iodine Nickel Gold
Point 1 6.36 8.85 74.85 2.55 7.36
Point 2 1.32 8.68 71.86 5.81 11.76
Point 3 0.00 0.00 3.58 38.82 57.58
Point 4 9.54 9.71 75.48 0.12 5.13
Point 5 3.83 9.61 60.83 7.86 17.85