Document Type : Research Article
Department of Chemical Engineering, Can Tho University&amp;amp;amp;ndash;3/2 Street, Ninh Kieu District, Can Tho City, Vietnam
Department of Chemical Engineering, Can Tho University–3/2 Street, Ninh Kieu District, Can Tho City, Vietnam
School of Chemical Engineering, Hanoi University of Science and Technology, Dai Co Viet, Hanoi, 10000, Vietnam
Department of Chemistry, Faculty of Basic Sciences, Can Tho University of Medicine and Pharmacy, 179 Nguyen Van Cu Street, Ninh Kieu District, Can Tho city, Vietnam
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.