Physics - Semiconductors Question with Solution | TestHub

In a p-type semiconductor, trivalent impurity atoms are added to the intrinsic semiconductor. Each impurity atom creates a hole in the valence band.

At room temperature, thermal energy generates a small number of electron-hole pairs. However, the concentration of holes due to doping is significantly higher than the concentration of thermally generated electrons.

Therefore, holes are the majority charge carriers and electrons are the minority charge carriers. A p-type semiconductor has a large number of holes and few electrons.

Answer: large number of holes and few electrons