Question

Donor impurities are
a)Ge and si b)In and Ga c)Sb and As d)Li and Ga

Answer 1

Answer:

c)Sb and As

Explanation:

When a pentavalent impurity is added to an intrinsic or pure semiconductor (silicon or germanium), then it is said to be an n-type semiconductor. Pentavalent impurities such as phosphorus (P), arsenic (As), antimony (Sb), etc are called donor impurity.