Band-Like Transport in Organic Semiconductors

This lecture discusses band-like transport in organic semiconductors, where charge carriers are localized due to thermal intermolecular motions, resulting in transient localization of electronic wavefunctions. It covers polaronic transport, disorder-controlled transport, charge transfer mechanisms, and temperature dependence of charge transport. The Gaussian Disorder Model and Microscopic View of Disorder-Controlled Charge Transport are explained. The lecture also explores Variable Range Hopping and Nearest Neighbor Hopping models, as well as the Generalized Einstein Relation. It concludes with a detailed analysis of the temperature dependence of carrier mobility and the unified description of various transport models in organic semiconductors.