Synergetic effect of La2CdSnTiO4-WSe2 perovskite structured nanoparticles on graphene oxide for high efficiency of dye sensitized solar cells

摘要

At present, the improvement of the efficiency of Dye Sensitized Solar Cells (DSSCs) is very necessary and urgent. One of the important aspects of improving efficiency is the development of materials for counter electrodes (CEs). In this article, the novel Graphene combined with Scruffy Perovskite -La2CdSnTiO4 WSe2 (G-LCT-W) were fabricated through a simple hydrothermal method and used for CEs in DSSCs. The effect of different amount of graphene oxide (GO) from 2 to 6 %wt was investigated. The highest conversion efficiency of 12.23% was obtained for the 4% G-LCT-W CE, which is higher than the conventional Pt CE at the same condition. This work described the effect of synergistic between GO and perovskite LCT-W, which significant to obtain higher electrocatalytic activity for iodide redox reaction. Therefore, we are pleased to present this material as an alternative material to enhance energy conversion in the future in both industry and education. (C) 2018 Elsevier B.V. All rights reserved.