dye-sensitized solar cells based on electrospun ag-doped tio2/pva nanofibers

Ag-doped tio2/pva nanofibers have many potential applications as a photoanode of dye-sensitized solar cells (dsscs). in this study, we report the fabrication of dsscs based on ag-doped tio2/pva nanofibers as photoanode, graphene oxide as a pt-free counter electrode catalyst, and natural dye sensitizer. ag-doped tio2/pva nanofibers were fabricated using an electrospinning method. the electrospun nanofibers were characterized by a scanning electron microscope, x-ray diffraction, fourier transform infrared spectroscopy, and thermogravimetric analysis. the nanoparticle content of lower 100 mg/ml, and the electrospun nanofibers were uniform. based on the results of the characterization analysis, the electrospun ag-doped tio2/pva nanofibers were successfully prepared with diameters from 100 to 400 nm. they were used as photoanodes of dsscs using a natural dye sensitizer extracted from the leaf of the magenta plant. the highest power conversion efficiency of dsscs with ag-doped tio2/pva nanofibers was 0.6% from the j-v curves. this approach would be a potential application for fabricating a solar cell based on composite fiber, pt-free catalyst, and natural dye sensitizer.