Question

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

Answer 1

(i) Ge is Group 14 element and In is Group 13 element. Hence, an electron deficit hole is carrated and therefore, it is p-type.
(ii) B is Group 13 element and Si is Group 14 element , there will be a free electron. Hence , it is n -type