Abstract

In this letter, MoSe2 nanosheets with flower-like nanostructure was in-situ grown on pre-coated three-dimensional (3D) porous reduced graphene oxide (rGO) thin films on fluorine-doped tin oxide glass by a facile hydrothermal method. The synergistic effect between the highly catalytic MoSe2 nanostructure and the highly conductive and large surface-area 3D rGO network endows the resultant MoSe2/rGO composite excellent electrocatalytic ability. As expected, dye-sensitized solar cells (DSSCs) prepared with MoSe2/rGO thin films as counter electrode (CE) exhibited a conversion efficiency of 6.56%, which was higher than that of DSSCs with sputtered Pt CE (6.08%).

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