Transient transport in disordered multilayers - art. no. 014201

In this work the main characteristics of transient photocurrents on disorde red multilayers, as obtained by the time-of-flight technique, are simulated and compared to experimental data from the literature. The origin of the d ouble-peak shape adopted by the photocurrents is discussed in this work, an d it is shown that each peak is directly related to the time delay of charg e carriers at the layer-layer and contact-layer interfaces, respectively. T wo mechanisms of conduction are involved in the transport of carriers throu gh the multilayer structure.