The facile preparation of a cobalt disulfide–reduced graphene oxide composite film as an efficient counter electrode for dye-sensitized solar cells†
Abstract
Cobalt disulfide (CoS2)–reduced graphene oxide (RGO) composite (CSG) films, which are prepared by combining the layer by layer assembly method and thermal treatment process, are used as counter electrodes (CEs) for dye-sensitized solar cells (DSSCs). The DSSC with CSG CE exhibits comparable efficiency to the cell with the Pt CE.