In an n-type semiconductor, the fermi energy level lies

Options

A. In the forbidden energy gap nearer to the conduction band
B. In the forbidden energy gap nearer to the valence band
C. In the middle forbidden energy gap
D. Outside the forbidden energy gap

Answer

A

Explanation

In an n-type semiconductor, the majority carries are electrons. However, large number of electrons are produced in the conduction band and this increases the possibility of moving the energy level towards conduction band.
Therefore the fermi level in the n-type semiconductor lies nearer to the conduction band.
Figure represents the fermi level inn-type semiconductor.