Mixed-valence bicarbazyl nano/microtubes and wires were embedded in conventional transparent polymer films, and their transparent conductive properties were compared. Though the outer diameter and length of the two fibers are comparable, the former exhibited much higher electric conductivity and visible-light transmittance than the latter. This was explained in terms of the differences in supermolecular ordering and doping level between the two fillers. Additionally, the transparent conductive features of films on which the nano/microtubes were supported were also described.