Question

To get a n-type semiconductor from silicon, it should be doped with a substance with valency ............ .
(a) 2
(b) 1
(c) 3
(d) 5

Answer 1

optio (D) is correct.

because.

Impurity of higher group is doped to get n-type semiconductor. Thus, silicon (valency = 4) should be doped with the element with valency equal to 5...

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