👉 "Thermionics" is a term that refers to the study of quantum mechanics and its applications in physics, particularly in the field of quantum thermodynamics. This discipline involves understanding how heat and matter interact at the atomic level, with the goal of predicting and controlling various phenomena such as cooling processes, energy conversion, and thermal equilibrium. Thermionic emission is one of the key concepts within this field, where electrons are excited to a higher energy state through collisions with atoms or molecules in an electric field
