Solid State Question 123

Question: To get a n- type semiconductor, the impurity to be added to silicon should have which of the following number of valence electrons

[KCET (Engg.) 2001]

Options:

A) 1

B) 2

C) 3

D) 5

Show Answer

Answer:

Correct Answer: D

Solution:

For n-type, impurity added to silicon should have more than 4 valence electrons.