Improve the performance of dye sensitized solar cell accomplished by composition of graphene/N doped TiO2

摘要

Graphene (GR) exhibits impressive photoelectric properties, including a large specific surface area, high charge-carrier mobility, high conductance, and fast electron transfer. In this study, the effect of GR on the performance of dye-sensitized solar cells (DSSCs) was investigated by mixing GR into N-doped TiO2 photoelectrodes. GR/N-doped TiO2 (GNT) nanoparticles were prepared using the sol-gel method. After preparation, the presence of GR in the photoelectrodes was confirmed using transmission electron microscopy (TEM, X-ray diffraction (XRD), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) analyses.