Synthesis And Characterization of Nio /V2o5 /Ag2o Nanocomposites and Application in Dye-Sensitized Solar

Abstract

In this study, a simple chemical method was used. A nanocomposite of nickel oxide and vanadium oxide was prepared, and silver oxide was added to this composite. The compounds were characterized using X-ray diffraction to show additional diffraction peaks in the spectrum of nickel oxide, vanadium oxide, and silver oxide for the second compound. Comparing these spectra with the spectrum of the oxides proved the correctness of the preparation of the compounds. The microstructure of the resulting compounds was examined via (FESEM). Differences between the synthesized compounds were also identified using FE-SEM, TEM, AFM, BET, and FTIR techniques. The prepared nanoparticles were used as electrodes in solar cells using a natural dye (green). The results showed that the efficiency of the prepared nanocatalyst NiO/ V₂O₅, was higher than that of the catalyst NiO/ V₂O₅ /Ag2O , as calculated by the conversion efficiency (η) of the cells under study. This is due to several factors, including the energy gap and the difference in surface area.