Self-assembly of graphene oxide/polyaniline multilayer counter electrodes for efficient dye-sensitized solar cells.

Highlights: [•] (GO/PANi)n multilayer counter electrodes are fabricated by a self-assembly technique. [•] The charge-transfer ability toward iodide reduction is significantly enhanced. [•] A conversion efficiency of 7.41% is obtained in its DSSC in comparison with that of PANi-only. [•] The strategy provides new opportunities for efficient DSSC assembly. [Copyright &y& Elsevier]