Low-Temperature Chemical Sintered TiO2 Photoanodes Based on a Binary Liquid Mixture for Flexible Dye-Sensitized Solar Cells

A chemically sintered and binder-free paste of TiO2 nanoparticles (NPs) was prepared using a binary-liquid mixture 1-octanol CCl4. The 1:1 (v/v) complex CCl4 easily interacted with the NPs induced formation highly viscous paste. as-prepared (<bold>P</bold>BL)-based film exhibited complete removal residuals subsequent low-temperature sintering (~150°C) UV-O3 treatment. This facilitated fabrication photoanodes for flexible dye-sensitized solar cells (f-DSSCs). For comparison purposes, pure 1-octanol-based (<bold>P</bold>O) moderate viscosity prepared. <bold>P</bold>BL-based strong adhesion high mechanical stability conducting oxide coated glass plastic substrates compared to <bold>P</bold>O-based film. corresponding f-DSSC showed power conversion efficiency (PCE) 3.5%, while it 2.0% f-DSSC. <bold>P</bold>BL<bold>-</bold>based low- high-temperature (500°C) glass-based rigid DSSCs PCE 6.0 6.3%, respectively, this value 7.1% 500°C DSSC based on commercial (or conventional)