Source: wikibot/quasi-fermi-level
= Quasi Fermi level
{wiki=Quasi_Fermi_level}
The quasi-Fermi level, also known as the quasi-Fermi energy level, is a concept used primarily in semiconductor physics to describe the energy levels of charge carriers (electrons and holes) under non-equilibrium conditions. In a semiconductor, carriers can be in thermal equilibrium, where their energy distribution can be described by a single Fermi level.