FAGONIA-SYNTHESIZED TITANIUM DIOXIDE NANOSTRUCTURES FOR DYE- SENSITIZED SOLAR CELL APPLICATION
Keywords:
Green synthesis, Titanium dioxide nanoparticles, Fagonia indica, Dye-sensitized solar cells, Nanostructures, Photovoltaic performance.Abstract
Green synthesis of semiconductor nanomaterials has emerged as a sustainable alternative to conventional chemical routes due to its environmental compatibility, low cost, and simplicity. In this study, titanium dioxide (TiO₂) nanostructures were successfully synthesized using Fagonia indica leaf extract as a natural reducing and stabilizing agent. Size, FTIR, UV-Vis Spectroscopy, and SEM were all used to characterize the produced Fg-TiO2 NPs. FTIR analysis, by revealing distinct absorption peaks in various locations, proves that leaf extract contributes to the production of Fg-TiO2 NPs. Using a UV-Vis spectrophotometer set at 273 nm and bandgaps of 3.15 eV and 3.26 eV, we verified the excitation of the green-synthesized Fg-TiO2 NPs. When the growth of Fg-TiO2 nanoparticles on FTO substrate become scattered. A DSSC based on film B, has power conversion efficiency of 4.45%, which is 24% greater than the power conversion efficiency of film A. Also increase in other parameters of DSSC just like open circuit voltage, fill factor and current density. The values for fill factor, open circuit voltage and current density in Film A, are 0.62V, 0.59 and 6.9 mA/cm2 respectively. The values for fill factor, open circuit voltage and current density in Film B, are 0.69V, 0.63 and 8.04 mA/cm2 respectively.
