Bandgap (eV)
1.92
1.42
Electron affinity (V)
3.63
4.07
Conduction band density of states, N C (cm −3 )
5.0 × 10 17
4.7 × 10 17
Valence band density of states, N V (cm −3 )
8.0 × 10 18
7.0 × 10 18
Relative permittivity
11.6
12.9