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Nano Convergence

Table 5 Elemental distribution (atomic %) of the individual elements observed on (CH3NH3)3SbBiI9/TiO2 substrate shown in Fig. 4e

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

Titanium

Gold

Point 1

2.70

3.11

23.86

68.98

1.32

Point 2

11.18

8.04

74.57

3.18

3.00

Point 3

9.09

7.42

65.20

11.73

6.23

Point 4

0.00

3.01

29.55

60.94

6.35

Point 5

0.00

3.76

27.73

65.99

2.50

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