ИСТИНА

Remarkable property of the random energy landscape in amorphous organic semiconductors is a strong spatial correlation of the energies of transport sites. We consider the typical mechanisms of the formation of the correlated energy landscape in organic semiconductors. Effects of the correlated landscape for charge carrier injection, transport, and recombination in organic electronic devices are considered. It turns out that spatial correlation (the spatial dependence of the correlation function of the random energy) determines the electric field dependence of the carrier drift mobility. Specific structure of the correlated electrostatic disorder near the electrode strongly affects charge carrier injection. Probably it is very important for the stable and reliable operation of electronic organic devices. Spatial correlation is one of the reasons for deviation of the bimolecular recombination rate constant from the Langevin value. Correlated disorder could lead both to the decrease (electrostatic disorder) and to the increase (conformational disorder) of rate constant in comparison to the Langevin constant. General properties of the bimolecular carrier recombination in 2D lamellas are considered too.