Fermi Distribution and DOS

This lecture covers the Fermi-Dirac distribution for thermal distribution of electron energies, the concept of Fermi energy, and the density of occupied states in materials. It also discusses the role of Fermi level in metals, semiconductors, and insulators, as well as the behavior of ideal metallic electrodes in organic semiconductor devices. The lecture further explores typical electrode materials, band bending at metal-organic semiconductor interfaces, and different mechanisms of charge injection. The learning outcome emphasizes the importance of matching metal work functions with the active transport region, overcoming energy barriers for charge injection, and the common methods of charge injection in organic semiconductors.