Dry plasma synthesis of a MWNT-Pt nanohybrid as an efficient and low-cost counter electrode material for dye-sensitized solar cells.

Dry plasma reduction (DPR) is an excellent approach for easily and uniformly immobilizing many platinum nanoparticles (Pt-NPs) with a size of 2-3 nm on both inner and outer surfaces of MWNTs under atmospheric pressure and at near room temperature. The MWNT-Pt nanohybrid exhibits quite low charge transfer resistance for dye-sensitized solar cells.