Table 4 Elastic moduli of bromide inorganic perovskites.

From: High-throughput screening of stable and efficient double inorganic halide perovskite materials by DFT

 

C11 (GPa)

C12 (GPa)

C44 (GPa)

B (GPa)

E (GPa)

G (GPa)

ν

V (m/s)

Cs2GeBr6

11.17 ± 2.401

4.26 ± 0.518

8.923 ± 0.006

6.41 ± 0.383

14.89

6.68

0.114

1342.40

Cs2HfBr6

15.89 ± 0.435

4.63 ± 1.470

11.63 ± 0.003

7.41 ± 0.569

19.74

9.21

0.072

1496.64

Cs2PdBr6

22.70 ± 6.342

− 0.16 ± 1.109

5.61 ± 0.543

7.48 ± 1.074

18.02

8.19

0.519

1463.65

Cs2SnBr6

17.36 ± 0.393

3.01 ± 0.495

8.90 ± 0.006

8.01 ± 0.186

18.40

8.23

0.118

1555.68

Cs2TeBr6

13.02 ± 0.186

2.39 ± 0.128

8.53 ± 0.001

6.09 ± 0.067

15.75

7.36

0.069

1446.08

Cs2ZrBr6

15.18 ± 0.744

2.54 ± 1.790

9.09 ± 0.029

6.85 ± 0.706

17.08

7.78

0.098

1505.36

Cs2SeBr6

14.28 ± 0.741

2.03 ± 1.049

7.81 ± 0.001

5.98 ± 0.492

14.75

6.76

0.278

1424.76

Rb2GeBr6

10.81 ± 1.915

4.08 ± 0.823

9.29 ± 0.002

6.324 ± 0.433

15.23

6.93

0.099

1402.02

Rb2HfBr6

15.11 ± 3.474

2.61 ± 1.006

8.49 ± 0.018

6.52 ± 0.718

16.25

7.48

0.158

1481.47

Rb2PdBr6

13.54 ± 0.748

6.75 ± 0.923

8.13 ± 0.687

8.50 ± 0.492

15.61

6.49

0.201

1325.17

Rb2SeBr6

9.79 ± 0.535

2.27 ± 0.878

7.28 ± 0.002

5.06 ± 0.408

11.23

4.90

0.146

1195.87

Rb2SnBr6

18.77 ± 0.152

5.23 ± 0.673

9.19 ± 0.010

9.79 ± 0.266

19.29

8.23

0.111

1600.55

Rb2TeBr6

11.95 ± 2.248

4.02 ± 0.322

2.83 ± 0.536

7.58 ± 0.359

8.44

3.19

0.363

1014.96

Rb2ZrBr6

13.68 ± 2.566

5.48 ± 0.863

9.27 ± 0.003

8.69 ± 0.599

17.85

7.69

0.464

1541.25

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