Comparative Assessment of Single and Mixed Photosensitizers using Erythrosin B and Tartrazine Yellow Dye System in Photogalvanic and Dye Sensitized Solar Cells

Abstract

To reduce costs, a low-cost thin-film solar cell technique known as the Dye Sensitized Solar Cell (DSSC)/Gratzel Cell emerged. DSSC is an easy to manufacture photovoltaic technique but lacks its stability and higher conversion efficiency factors. In this paper, to overcome these challenges and to keep the cost factor on trial, the photogalvanic cell was also studied using an H-shaped glass tube. Both DSSC and photogalvanic cells were studied using the dyes Erythrosin B, Tartrazine, and a mixture of Erythrosin B and Tartrazine. It was noticed that the solution of a “mixture of photosensitisers” gave the conversion efficiency(η) of solar light of 0.11% in DSSC with Dimethyl sulphoxide (DMSO) as solvent, whereas the same system gave the 0.6963% conversion efficiency(η) of solar light in a photogalvanic solar cell, which states that photogalvanic cells shows comparatively higher conversion efficiency than DSSC.