Due to its high electron mobility, chemical characteristics, low cost, and environmental friendliness, graphene is a promising material and alternative way for achieving high performance in dye-sensitized solar cells (DSSCs). It is zero electron-volt energy bandgap allows it to improve electron transport efficiency and light absorption. The TiO2/G composite was synthesized by using the TiO2 process methodology. The different quantities of graphene flakes were applied and photovoltaic performance, internal impedance, and absorbance were determined. As a consequence, this graphene doping enhanced overall performance increased by 11.41% of its efficiency for a thickness of 13 compared with pure TiO2.