Question

how the energy gap of a semiconductor varies ???​

Answer 1

Answer:

Explanation:

When an intrinsic semiconductor is doped with impurity it becomes an extrinsic semiconductor. ... In an n-type semiconductor, energy gap decreases. Fermi-level shifts towards the conduction bandwhere, higher number of electrons are available for conduction. In a p-type semiconductor, energy band increases.

Answer 2

Answer:

When an intrinsic semiconductor is doped with impurity it becomes an extrinsic semiconductor. ... In an n-type semiconductor, energy gap decreases. Fermi-level shifts towards the conduction bandwhere, higher number of electrons are available for conduction. In a p-type semiconductor, energy band increases.