Charge Transport Regimes: Transport Regimes

This lecture covers the different transport regimes in organic semiconductors, including coherent and incoherent transport, band and band-like transport, polaronic transport, and disorder-controlled transport. It explains the models developed for inorganic semiconductors and their application to molecular materials, emphasizing the various experimental techniques used to study transport mechanisms. The lecture also discusses the charge transport in molecular crystals of organic semiconductors, illustrating it as a 1D molecular crystal with energy sites. Furthermore, it explores the one-electron Hamiltonian for charge transport, detailing the excitation and charge transfer terms, dynamic disorder terms, and static disorder terms. The relative magnitudes of these terms determine the fundamental nature of the transport process in organic semiconductors.