Effect of varied extracting solvent on stability and reliability of DSSCs using natural dyes as photosensitizer

This paper describes fabrication and characterization of several natural dyes in varied solvent. The varied fabrication step is characterized via the stability and reliability study of dyes as photosensitizer. Rosella, Bawang Sabrang, Cherry Barbados, Mulberry, Ardisia, Oxalis Triangularis and Harum Manis mango are used as a dye sensitizer. The dyes are extracted in water and ethanol with the same ratio was employed as nanoparticle titanium dioxide thin film dye-sensitized solar cells (DSSCs). As for Rosella, Bawang Sabrang, Cherry Barbados, Mulberry, Ardisia, Oxalis Triangularis and Harum Manis mango dye sensitized electrode in water solvent, the solar cell yields of energy conversion efficiency is about 0.67%, 1.06%, 0.14%, 0.33%, 2.64%, 0.68% and 0.03%, respectively. In ethanol solvent the conversion efficiency for Rosella, Bawang Sabrang, Cherry Barbados, Mulberry, Ardisia, Oxalis Triangularis and Harum Manis mango is about 0.2%, 0.23%, 0.44%, 0.17%, 0.61%, 0.51% and 0.51%, respectively. Moreover, the stability and reliability of the dyes extracted was also improved by changes the solvent of extracting dyes after 24 hours being stored at room temperature.