Question

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

Answer 1

$\bf{(i)\:\:Ge\:doped\:with\:In:}$
‘Ge’ belongs to group 14th in th periodic table and ‘In” belongs to the group 13th . thus, when ‘Ge’ is doped with ‘In’, it makes hole or electron vacancy and acts as p – type conductor.

$\bf{(ii)\:\:B\:doped\:with\:Si}$
‘Si’ belongs to group 14th in the periodic table and ‘B’ belongs to group 13th. Thus, when ‘Si’ is doped with ‘B’, it makes hole or electron valance and acts as p – type conductor.

Answer 2

Answer:

Explanation:

In is group 13 element,hence p type semiconductor.

B is also group 13 element,hence p type semiconductor, hope you understood.