Question

Which type of semiconductor is formed when silicon is doped with arsenic?

Answer 1

N-type semiconductor:

1. Whenever a pentavalent impurity would be introduced to an intrinsic or perfect semiconductor, the consequence is an n-type semiconductor.
2. Donor impurities include pentavalent impurity or defects like phosphorus, arsenic, and antimony.
3. Numerous people believe that an n-type semiconductor contains a huge amount of free electrons. As a result, the total electric charge of an n-type semiconductor is negative. This presumption, however, is incorrect.

Therefore, an n-type extrinsic semiconductor is formed when silicon is doped with arsenic.