Question

Doping of silicon is achieved by the sustitution of a different element for some of the silicon atoms. what type of semiconductor is shown below? group of answer choices

O it is a p-type semiconductor because the phosphorus atoms have one more electron than the silicon atoms.
O it is an n-type semiconductor because the phosphorus atoms have one more electron than the silicon atoms.
O it is a p-type semiconductor because phosphorus was substituted for silicon, rather than nitrogen being substituted for silicon.
O it is an n-type semiconductor because phosphorus is a nonmetal, whereas silicon is a metalloid.

Answer 1

The type of semiconductor is shown below is an n-type semiconductor because the phosphorus atoms have one more electron than the silicon atoms.

The second option is correct .

Doping introduces impurities into a semiconductor to alter its electrical conductivity. phosphorus here introduces atoms are substituting some silicon atoms. Phosphorus belongs to Group V of the periodic table, meaning it has five valence electrons, while silicon belongs to Group IV and has four valence electrons.

When a phosphorus atom replaces a silicon atom in the crystal lattice, its extra valence electron becomes unbound and free to move under the influence of an electric field, making the material more conductive. The additional free electron contributes to the majority carrier type, creating an n-type semiconductor, where negatively charged electrons are the primary charge carriers.