Table 2 The formation energy of neutral halogen dopants in interstitial and oxygen position.

From: Optimization of the hydrogen response characteristics of halogen-doped SnO2

Defect case

Formation energy (eV)

Fi:SnO2

1.20

Fo:SnO2

0.46

Cli:SnO2

5.10

CloSnO2

3.05

Bri:SnO2

5.97

Bro:SnO2

4.43

Ii:SnO2

7.28

Io:SnO2

6.80