Abstract
Photovoltaics is defined as a group of solar cells that convert solar energy into electricity. Among these cells, dye-sensitized solar cells (DSSCs) have received considerable attention due to of their low cost and high efficiency for energy conversion. In present study, CoSe2@N-doped graphene nanocomposite has been prepared in an inert atmosphere and used as a DSSC counter electrode. The fabricated nanocomposite was characterised using analytical techniques including FTIR, TGA, XRD, Raman, XPS, and BET. The assembled DSSC obtains a photoelectric conversion efficiency (PCE) of 7.65%, which is higher than the PCE (7.19%) of the Pt electrode assembly cell under the same conditions. The promising performance of the fabricated counter electrodes may be due to the excellent surface area of the nanocomposites, the doping of hetroatomes which provide the active sites to boost the catalytic activities towards I3- reduction.
CoSe2@N-Doped Graphene Nanocomposite High-Efficiency Counter Electrode For Dye-Sensitized Solar Cells
