over his head. he is confusing people more than he is teaching them
if Dit increase Wd increases
when Wd increase, the bandbending increases and Ef-E0 decreases. Thus the fermi level is pinned to E0 when the surface/interface state density increases.
his formula is a very confusing approximation, which is not taking the energy depence of the interface state density
@xamax4 I disagree. First, (Ef-E0) is usually quite small in most III-V/metal interfaces because of dirty interfaces, and Dit is approximately constant over that small energy range. Second, E0 is the neutral point, and its position depends implicitly on the full distribution of interface states in the energy gap.
It is impossible to understand his english
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