A small impurity is added to germanium to get a n-type semiconductor. This impurity is a

Question

A small impurity is added to germanium to get a n-type semiconductor. This impurity is a (A) trivalent substance (B) pentavalent substance (C) bivalent substance (D) monovalent substance

Tardigrade Admin · Accepted Answer

n-type semiconductor is obtained when Si or Ge (tetravalent) is doped with pentavalent impurities like As, Sb, P etc.

Q. A small impurity is added to germanium to get a $n - t y p e$ semiconductor. This impurity is a

trivalent substance

pentavalent substance

bivalent substance

monovalent substance

$n$ -type semiconductor is obtained when Si or Ge (tetravalent) is doped with pentavalent impurities like As, Sb, P etc.

Q. A small impurity is added to germanium to get a n−type semiconductor. This impurity is a