Question

Classify each of the following as being either a p-type or a n-type semiconductor: (1) Ge doped with In (ii) Si doped with B.

Answer 1

Answer:

1)Ge dipped with In is n-type semiconductor

2)Si dipped with B is p-type semiconductor

Answer 2

Dear Student,

◆ Answer -

1. Ge doped with In => p-type semiconductor
2. Si doped with B => p-type semiconductor

● Explaination -

(i) Ge doped with In -

• Ge (Gr 14) has 4 valence electrons and In (Gr 13) has 3 valence electrons.
• When a Ge-atom is replaced by a In-atom, it creates an elctron-deficiency.
• Hence, it will form p-type semiconductor.

(ii) Si doped with B -

• Si (Gr 14) has 4 valence electrons and B (Gr 13) has 3 valence electrons.
• When a Si-atom is replaced by a B-atom, it creates an elctron-deficiency.
• Hence, it will form p-type semiconductor.

Hope this helps dear...