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Electronic configuration of germanium is 2, 8, 18 and 4. To make it extrinsic semiconductor small quantity of antimony is added

a)

The material obtained will be -type germanium in which electrons and holes are equal in number

b)

The material obtained will be -type germanium

c)

The material obtained will be -type germanium which has more electrons than holes at room temperature

d)

The material obtained will be -type germanium which has less electrons than holes at room temperature



Question ID - 151935 | SaraNextGen Top Answer

Electronic configuration of germanium is 2, 8, 18 and 4. To make it extrinsic semiconductor small quantity of antimony is added

a)

The material obtained will be -type germanium in which electrons and holes are equal in number

b)

The material obtained will be -type germanium

c)

The material obtained will be -type germanium which has more electrons than holes at room temperature

d)

The material obtained will be -type germanium which has less electrons than holes at room temperature

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

Artimony is a fifth group impurity and is therefore a donor of electrons

127 votes


127