Multi-wailed carbon nanotubes are used for the templated assembly of HErPc2 nanowires via the phase-separation method. When the solvent is evaporated gradually, HErPc2 nanoparticles and nanowires are found to self-assemble on the exterior walls of CNTs, as shown in the Figure. The CNT-HErPc2 hybrid materials exhibit improved photoconductivity owing to the contribution from the photoinduced charge transfer from HErPc2 to CNTs.