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Table 10 Elemental distribution (atomic %) of the individual elements observed on Ag3BiI3(SCN)3/TiO2 substrate shown in Fig. 8c

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

Spot

Bismuth

Silver

Iodine

Sulphur

Carbon

Nitrogen

Titanium

Oxygen

Silicon

Point 1

3.10

20.88

10.24

2.54

7.94

3.40

12.17

19.97

21.76

Point 2

3.31

45.94

15.54

2.72

6.08

–

11.52

8.57

6.33

Point 3

3.71

29.29

12.62

2.97

8.06

0.84

13.16

12.64

16.71

Point 4

3.98

26.85

8.77

3.29

7.04

4.89

13.25

18.52

13.40