Influence of Synthetic Dye Impact with Natural Dye-Sensitized Solar Cell

Natural dyes, synthetic dyes, and semiconductors must all interact properly for dye-sensitized solar cells to operate at high efficiency. Using dye molecules to sensitize the semiconductor electrode material is the basis for a device called a dye-sensitized solar cell (DSSC), which turns light into electrical energy. Because popular TiO2 and ZnO semiconductors have poor absorption capacities in the visible light band, dye sensitizers have been used to increase the number of excited electrons produced by light absorption. Doctor blade processing was used to coat fluorine-doped tin oxide glass substrates with ZnO films before sintering at 450 °C. Absorption spectra were analyzed for both individual dyes and mixtures of dyes. The photovoltaic performance of the DSSC with the produced dyes was evaluated using a Xenon lamp as a solar simulator with an output of 100 mW/cm2 and a Keithley Electrometer 6517B. The power conversion efficiency of DSSCs produced from Eosin Y and neem is 0.4% and 0.3%, respectively. Of all the Eosin Y and neem-prepared solar cells, the one with the highest efficiency of 1.5% stood out.