Composite catalyst of rosin carbon/Fe3O4: highly efficient counter electrode for dye-sensitized solar cells

A composite catalyst of rosin carbon/Fe3O4 with marvellous morphology was synthesized and applied as a counter electrode (CE) in dye-sensitized solar cells (DSCs), demonstrating notable electrocatalytic activity for the reduction of I-3(-). Based on this CE, a high power conversion efficiency of 8.11% was achieved, comparable to that of the traditional Pt CE.