A new breakthrough for graphene/carbon nanotubes as counter electrodes of dye-sensitized solar cells with up to a 10.69% power conversion efficiency

A three-dimensional graphene/single-walled carbon nanotube counter electrode is developed for dye-sensitized solar cells via a drop-coating method. The resulting graphene/single-walled carbon nanotube counter electrode show satisfactory transmittance (56.6%) compared with that of bare fluorine-doped tin oxide glass (84.71%) at 670 nm. The obtained graphene/single-walled carbon nanotube counter electrode exhibits an excellent power conversion...