If a pentavalent impurity is mixed in the crystal-lattice of germanium then the semiconductor formed will be

Question

If a pentavalent impurity is mixed in the crystal-lattice of germanium then the semiconductor formed will be (A) p-type semiconductor (B) n-type semiconductor (C) (i) and (ii) both (D) None of the above

Tardigrade Admin · Accepted Answer

Pentavalent elements have one excess valence electron after forming the four covalent bond normally formed by germanium. The excess electrons give rise to electrical conductance. It is called n-type semi-conductors, the symbol 'n' indicates that the negative charge flows in them.

Q. If a pentavalent impurity is mixed in the crystal-lattice of germanium then the semiconductor formed will be

p-type semiconductor

n-type semiconductor

(i) and (ii) both

None of the above

Pentavalent elements have one excess valence electron after forming the four covalent bond normally formed by germanium. The excess electrons give rise to electrical conductance. It is called n-type semi-conductors, the symbol ' $n$ ' indicates that the negative charge flows in them.