A New Method for Enhancement Efficiency of Dye-Sensitized Solar Cells Based on TiO2 Doped Ag Nanostructures as Photo-Anode
نویسندگان
1 Physics Department, College of Science, Mustansiriyah University, Baghdad, Iraq
2 Chemistry Department, College of Science, Mustansiriyah University, Baghdad, Iraq
3 Chemistry Department, College of Science, Mustansiriyah University, Baghdad, Iraq
4 Physics Department, College of Science, Mustansiriyah University, Baghdad, Iraq
doi
10.22052/JNS.2026.02.045چکیده
Pure and silver-doped TiO2 nanoparticles were synthesized using a unique and sustainable photo-irradiation method, in which red cabbage extract was used as an eco-friendly sensitizer. Ag dopants with different concentrations were prepared using the precursor materials technique. Red cabbage extract was introduced as the sensitizer dye. In the DSSCs, thin films of Ag-doped TiO2 were employed as photo-anodes, and significant improvements in light-to-energy conversion efficiency were observed. The parameters of the DSSCs were measured, with the Ag-doped TiO2 (0.03 mol) achieving the highest results, with a short-circuit current density (Jsc) of 10mA cm-2, an open-circuit voltage of 0.8 V, filling factor of 39.37, and an overall energy conversion efficiency (ƞ) of 3.15. As a result, when comparing the DSSCs with an undoped TiO2 photo-anode, the power conversion efficiency of the Ag-doped TiO2 cell increased significantly by 30% and 50% for the 0.01 and 0.03 mol concentrations, respectively.
