Dear Experts,
I have a question about the Fermi level position for a semiconductor (SnO2) as an electrode.
For metallic system, the position of Fermi level is determined by the filling of electrons, since Fermi level crosses the Density of State. For semiconductor, in principle, the position of Fermi level could be placed at any place between valence band maximum and conduction band minimum. But when the semiconductor is used as an electrode, its Fermi level should be equal to that of another electrode (a metallic system in our studies) when the bias is zero. In this case, the Fermi level position of the semiconductor is important.
From band structure calculations of SnO2 bulk, we found that the Fermi level of SnO2 is put at the conduction band minimum (in attached figure). Could you please tell me whether the Fermi level will be placed at the same position, i.e. the conduction band minimum of the electrode, in a transmission calculation (Bias = 0V)?
Thank you very much for your answer.
Best regards,
Qiang
