Question

Draw energy band diagram of p & n type semiconductors. Also write two differences between p and n type semiconductors.

Answer 1

| P-type semiconductor | n-type semiconductor |
| 1. Density of holes >> density of electron | 1. density of electron>>density of holes |
| 2. Formed by doping trivalent impurity | 2. formed by doping pentavalent impurity |
| Energy band diagram for p-type | Energy band diagram of n-type semiconductor |