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