An effective counter electrode (CE) was prepared with single-walled carbon nanotubes (SCNTs) for the dye sensitized solar cells (DSSCs) by simple casting technique using polyvinylpyrrolidone (PVP) as a wrapping agent.
The uniform and smooth SCNTs thin film without breaking of tubes were obtained on the fluorine doped tin oxide (FTO) glass substrate by the wrapping of PVP.