Efficiency of the dye from Spinacia olerace linn for augmentation of charge transfer to Tio2 in dye sensitized solar cell

Abstract

A chlorophyll-rich dye was made from the leaves of Spinaciaoleracealinn using ethanol and a TiO2 nanoparticle-coated FTO substrate immersed in the dye to achieve ideal binding to maximize absorption of photon energy. The dye's visible light absorbance ranges from 400 nm to 700 nm, with a notable peak at 657 nm and the existence of functional groups allowing perfect binding to the semiconductor material. oxide was confirmed by UV–Visible and FTIR spectroscopy. The SEM image of the dye-impregnated TiO2-coated FTO shows a uniform dispersion of the dye over the entire surface for better photon absorption. Dye-sensitive solar cells are made using a graphene-based counter electrode and an electrolyte of the redox pair I-/I-3. The bonding characteristics of the fabricated solar cells were analyzed to predict the solar cell parameters, and it was found that the fabricated solar cells produced 0.78% efficiency with open circuit voltage., short circuit current, current density and fill factor are 0.49 V., 2.01 mA/cm2 and 0.54 respectively.