P type semiconductor: Learn what is p type

Learn what is p type semiconductor , how it is formed by adding trivalent impurities like gallium, and how it conducts by holes. See the energy band diagram and the conduction process of p type semiconductor . 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 ... P -type Semiconductor Definition: A p -type semiconductor is defined as a semiconductor doped with trivalent impurity atoms, creating holes as the majority charge carriers. Role of Trivalent Impurity Atoms: Trivalent impurities, like boron, have three valence electrons that form bonds with the semiconductor atoms, leaving one incomplete bond or hole. 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.