Synthesis of pure and 4-Nitroaniline doped (PVDF-HFP/LiI/I2) polymer electrolyte for dye sensitized solar cell (DSSC) applications

The pure (PVDF-HFP/LiI/I2) and 4-nitroaniline doped (4-nitroaniline/PVDF-HFP/LiI/I2) poly(vinylidene fluoride-co-hexafluoropropylene) based polymer electrolytes were prepared using N,N-dimethylformamide (DMF) as a solvent by solution casting method. From the AC-impedance analysis the conductivity of polymer electrolytes was measured. The amorphous nature of the polymer electrolytes has been confirmed by powder X-ray diffraction (PXRD) analysis. Ionic conductivity studies revealed that the 4-nitroaniline doped polymer electrolyte has the higher ionic conductivity (3.18 × 10−6 S/cm) compared to pure (1.88 × 10−7 S/cm) polymer electrolyte. The conversion efficiency of pure and 4-nitroaniline doped polymer electrolytes based dye sensitized solar cells (DSSCs) are 1.3% and 1.5% respectively.