Question

Classify the following semiconductors into n or p types.
i) B doped with Si
ii) As doped with Si
iii) P doped with Sit
iv) Ge doped with In

Answer 1

HEYAA..!
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(1)B is a 13th group element and Si is a 14th group element .When 13th group element is doped with In a 14th group element, created hole will generate n–type
semiconductor.

(4)Ge is a 14th group element and In is a 13th group element .When 14th group element is doped with In a 13th group element, a electron deficit hole created .Hence Ge doped with In will generate p–type semiconductor.

Answer 2

1. n type

2. ptype

3.

4.ptype