Research on Photovoltaic Measurement and Electrochemical Impedance Spectroscopy Analysis of Dye-Sensitized Solar Cells With Modification of Photoanodes by TiO2 Nanofibers Composited With Zn2SnO4-SnO2 Under Various Illuminances

This study involves the utilization of electrostatic access techniques and the development of ZTO-SnO
₂
/TiO
₂
nanofibers (NFs) in different ratios of 1%, 3%, and 5%. The dye-sensitized solar cells (DSSCs) efficiency was enhanced through the utilization of ZTO-SnO
₂
nanofiber composites in photoanodes. According to this study, the 3% ZTO-SnO
₂
/TiO
₂
nanofiber-modified DSSCs conversion efficiency was better than that of other DSSCs at different light intensities. When the light intensity is 100 mW/cm
²
, there is a rise in efficiency by 30.91% compared with pure TiO
₂
. The EIS (Electrochemical Impedance Spectroscopy) usage demonstrated that adding ZTO-SnO
₂
efficiently lowered the photoanode's electron transfer impedance. The higher scattering potential and powerful electron transfer capability have been demonstrated to have a positive effect on increasing the JSC of DSSCs using quantum efficiency studies.