Dye-Sensitized Solar Cell using Natura Dye Extracted from Mirabilis Jalapa

K.M Prabu, P.M Anbarasan

Abstract


Dye-sensitized solar cells (DSSCs) were assembled using extracts from mirabilis Jalapa flower as sensitizers for nanocrystalline TiO2 photo electrodes mirabilis Jalapa flowers were used as sensitizer’s and charerized by UV, FTIR, FE-SEM, EDX & I-V. The morphology and size of the particles are determined by the FE-SEM images. The particles were roughly spherical in shape in pure sample with the diameter of 30nm to 70nm. These dyes were purified to different extents and used for the construction of solar cells that were electrically characterized. Solar cells were assembled using TiO2 thin film on Fluorine-doped tin oxide (FTO)-coated glass; a mesoporous film was sensitized with the mirabilis Jalapa flower extracts. The obtained solar energy conversion efficiency (η), Fill factor (FF), Short circuit current density JSC, Open circuit voltage and power maximum are calculated using an irradiation of 100 mW/cm2 at 28 °C. Sources and dye-sensitized solar cells are one of the most promising ones for this application since it is cheap and environmentally friendly.

Keywords


Dye-sensitized solar cells, mirabilis Jalapa flower, natural dye, solar energy, dip coating & FTO glass.

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