Ag-doped ZnO nanomaterials have been synthesized by sol-gel method using various volume ratios of ZnO and Ag of 99:1, 97:3, 95:5. Ag-doped ZnO added SiO2 has mechanically synthesized with a mass ratio of ZnO:Ag and SiO2 95:5. This study analyzed the effect of Ag doping on ZnO and addition of 5 wt% SiO2 on ZnO:Ag on the physical properties of the active material and the efficiency of dye sensiti…