Materials Research Bulletin, Vol.105, 202-209, 2018
Acid-free approach towards the growth of vertically aligned TiO2 nanorods as an efficient photoanode for dye-sensitized solar cells
We synthesized the closely packed titanium dioxide nanorods (TiO2 NRs) on fluorine-doped tin oxide (FTO) glass by a facile and cost-effective hydrothermal method. The TiO2 NRs were further utilized as a photoanode for dye sensitized solar cells (DSSCs). For hydrothermal growth of TiO2 NRs, we utilized an acid-free reaction medium instead of a strong acidic medium, which can reduce the equipment cost as well as the environmental damages. Before employing these TiO2 NRs for DSSCs as a photoanode, the effects of hydrothermal growth parameters on the structural and optical characteristics of TiO2 NRs/FTO glass were investigated. Eventually, the TiO2 NRs with optimized height and diameter were employed to DSSCs and their photovoltaic characteristics were examined.
Keywords:Titanium dioxide nanorods;Hydrothermal method;Acid-free environment;Dye-sensitized solar cells;Photoanode