Effect of 4‑nitroaniline‑doped PVDF/LiI/I2 based polymer electrolyte for dye sensitized solar cell applications

The present work focuses on enhancing the Dye Sensitized Solar Cells (DSSCs)
power conversion efficiency through the incorporation of 4-Nitroaniline into solid
polymer electrolyte (SPE). The SPE were synthesized using polyvinylidene fluoride
(PVDF)/lithium iodide (LiI)/iodine (
I2) matrix with various weight percentages
(0% to 50%) of 4-Nitroaniline. Structural and morphological characterizations
were examined using FT-IR, XRD, and SEM while the ionic conductivity was
examined by AC-Impedance spectroscopy. Significantly the SPE containing 30%
of 4-Nitroaniline shows the highest conductivity of 5.54 × 10–
5 Scm−
1 attributed to
enhance the increasing ion transport properties and decreasing aggregation and
clustering. The achievement of 3.73% as PCE with Fill Factor (FF) of 70.05%, Open
Circuit Voltage (Voc) of 0.72 V, Short Circuit Current Density (Jsc) of 7.40 mA/cm2
under 1000 W/m2 illumination revealed at 30% 4-Nitroaniline-doped electrolyte
in DSSC. These findings demonstrate the highlight of 4-Nitroaniline for improving
DSSC performance.