What is commonly true about the charge carriers in p-type semiconductors?

In p-type semiconductors, the charge carriers are primarily holes, which are considered to carry a positive charge. This occurs because p-type semiconductors are created by doping a pure semiconductor, such as silicon, with elements that have fewer valence electrons, typically from group III of the periodic table, like boron. When these dopant atoms replace some silicon atoms, they create "holes" in the crystal lattice, where an electron is missing.

These holes can move through the semiconductor material as adjacent electrons jump into the holes, effectively allowing the holes to behave as if they are positively charged particles. Hence, in a p-type semiconductor, the majority charge carriers are indeed positive, which accounts for the classification of this type of semiconductor.