Abstract :

An organic dye has become a viable alternative to expensive natural sensitizers because of their low cost of production, abundant in supply, and eco-friendliness. In this study investigates the relationship between the performance of a dye-sensitized solar cell (DSSC) sensitized by a natural sensitizer of Bauhinia purpurea L. flower dye extract. The dyes have shown absorption in a broad range of the visible region (341nm) of the solar spectrum and significant adsorption onto the semiconductor (TiO2) surface. The DSSCs made using the extracted dye showed the open circuit voltage (Voc) of 0.7 V, current short circuit (Jsc) of 1.4 mA and a fill factor (FF) of 0.64.