Wave Optics

Question

In an n-type semiconductor, which of the following statement is true?

Electrons are majority carriers and trivalent atoms are dopants

Electrons are minority carriers and pentavalent atoms are dopants

Holes are minority carriers and pentavalent atoms are dopants

Holes are majority carriers and trivalent atoms are dopants

Solution

Holes are minority carriers and pentavalent atoms are dopants

The n-type semiconductor can be produced by doping impurity atoms of valence 5 i.e., pentavalent atoms, i.e., phosphorous.