CuFeS2 colloidal nanocrystals as an efficient electrocatalyst for dye sensitized solar cells†
Abstract
Cubic CuFeS2 nanocrystals (NCs) have been obtained via a facile colloidal chemistry approach and they show remarkable catalytic activity in the reduction of I3−. Dye sensitized solar cells (DSSCs) with CuFeS2 NCs as counter electrodes (CEs) display a power conversion efficiency of 8.10% comparable to that of a cell with Pt as the CE (7.74%) under the same conditions.