Dispersive carrier transport in partially oriented p-quaterphenyl layers
Abstract Charge carrier transport in partially oriented p-quaterphenyl films was investigated using the transient current technique. In contrast to completely oriented layers, all current pulses in textured p-quaterphenyl films were highly dispersive and their representation on a double logarithmic scale may be described by two straight lines (with slopes −(1− α ) and −(1+ α ), where α ≈ 0.65). This indicates the possibility that the results can be interpreted in terms of the Scher-Montroll model of dispersive transport in disordered systems.