Properties of Semiconductors: Practice Problem & Solution

Solution Explained:

To solve this problem, we apply the core principles of Properties of Semiconductors. Understanding the underlying formula is key to arriving at the correct answer below:

To obtain an n-type semiconductor, an intrinsic semiconductor must be doped with a pentavalent impurity. Phosphorus is a pentavalent element, which provides extra electrons to act as majority charge carriers.[cite: 1]