To get more insight into the PEDOT oligomers arrangement, their relative orientation has been analyzed in terms of the angle between the planes of the thiophene rings. More specifically, Figure displays the intermolecular orientational distribution function, defined as the average angle between the normal vectors of the thiophene rings as a function of the distance between rings in different oligomers. It can be seen that, as the sorbitol concentration increases, a nearly parallel orientation is maintained for longer distances.