Characteristics of dye Rhoeo spathacea in dye sensitizer solar cell (DSSC)

Dye-sensitized solar cell (DSSC) is a device that converts solar energy into electrical energy. The magnitude of the efficiency of DSSC is mainly based on the amount of dye absorbed by the surface of TiO₂. In this work, used natural dye extracted from leaves Rhoeo spathacea. The dye partially used to immerse of TiO₂ as working electrodes, and the rest are directly mixed TiO₂ paste to obtain dye titanium dioxide.The paste TiO₂ and dye titanium dioxide coated onto the fluorine-doped tin oxide (FTO) glass plate by spin coating method. The absorbance spectra of the dye, dye titanium dioxide and TiO₂ were obtained by UV-Vis spectroscopy. The conductivity of the dye, dye titanium dioxide, and TiO₂ was measured by two point probe El-Kahfi 100. The DSSC based on dye titanium dioxide that stirring for 5 hours the highest efficiency of 0,0520 % whereas those based on TiO₂ immersed for 36 hours showed achieved 0,0501 % obtained from I-V characterization.