Question

If \( E_p \) (Fermi energy level) \(>E_f \) (intrinsic Fermi energy level), then the type of semiconductor is

• A. n-type
• B. Elementary
• C. p-type
• D. Compound

Hint:

In semiconductors, the position of the Fermi energy level with respect to the intrinsic Fermi level indicates whether the material is n-type or p-type.

Answer 1

The Correct Option is A

In semiconductor physics, the position of the Fermi energy level relative to the intrinsic Fermi energy level determines the type of semiconductor.
- If the Fermi energy level \( E_f \) is greater than the intrinsic Fermi energy level \( E_p \), the semiconductor is n-type. This is because there are excess electrons in the conduction band.
- If \( E_f \) is less than \( E_p \), the material is p-type, as there are excess holes in the valence band.
Thus, the correct answer is option (1).