Question

A perfect crystal of silicon (fig) is doped with some elements as given in the options. Which of these options shows n-type semiconductors ?

Answer 1

Answers: (a), and (c)

n-type semiconductor When group 15 elements are doped into a perfect crystal it leads to the formation of an n-type semiconductor.

Here, in (a) as (group 15, period 3) is doped to perfect SI-crystal and in (c) as (group 15, period 2) is doped to perfect SI-crystal.