the fermi energy of an intrinsic semiconductor is closer to the valence band than the conduction band. it is true and false ?
Answers
The probability of energy occupation levels in conduction band and valence band is called a Fermi level.
The zero temperature intrinsic semiconductor acts as the perfect insulator.
In the semiconductor the number of holes in the valence band is equal to number of electrons in conduction band.
So the Fermi energy of an intrinsic semiconductor lies in the middle of the band.
The answer for this question is false.
Fermi level is the probability of the occupying of energy levels in the valence and the conduction band.
An intrinsic semi conductor is purely an insulator when the temperatures are at 0 degrees.
In an intrinsic semi conductor , the number of holes equals to the number of the electrons in the valence and conduction bands respectively.
The probability of occupation of energy levels is equal for valence and conduction band.
The fermi level lies at the middle of the forbidden gap hence it is the same distance from the valence band and the conduction band .