Intrinsic & Extrinsic Semiconductors
In n-type semiconductor
A) pentavalent impurity are dopants and holes are majority carriers.
B) trivalent impurity are dopants and electrons are minority carriers.
C) pentavalent impurity are dopants and electrons are majority carriers.
D) trivalent impurity are dopants and holes are majority carriers.
Show answer and solution
Answer: (b)
- n-type: doped with a pentavalent impurity (P, As, Sb), which donates extra electrons.
- So electrons are majority carriers and holes minority carriers; only statement C fits.
- So the answer is (b) C.