A p-type semiconductor is a group IV intrinsic semiconductor such as silicon (Si) doped with group III boron (B) or indium (In) as an impurity. Group IV elements are tetravalent elements with four valence electrons, while group III elements are trivalent elements with three valence electrons. A single crystal made only of tetravalent elements such as Si is an intrinsic semiconductor in which all bonds are connected to other elements by covalent bonds. When a small amount of boron is added to ... What is p type semiconductor (Basic Details) When you add a small amount of trivalent impurity, such as gallium or indium, to a pure semiconductor , you create an extrinsic p-type semiconductor . This process generates a large number of holes in the material. These impurities are called “Acceptor Impurities” because each atom creates one hole, which can accept an electron. Learn the definition, impurity, charge carriers, and conductivity of P - type and N- type semiconductors. Compare the two types of extrinsic semiconductors based on various factors such as doping, energy levels, fermi level, and temperature effect.
