Dye-sensitized solar cells fabricated with black raspberry, black carrot and rosella juice

In this work, dye sensitized solar cells (DSSC’s) were constructed from black raspberry (Rubus Ideaus), black carrot (Daucuscarota L.) and rosella juice (Hibiscus Sabdariffa L.). In order to fabricate a DSSC the fluorine-doped tin (IV) oxide (FTO) thin films obtained by using spray pyrolysis technique were used as a substrate. TiO₂ films on FTO layers were prepared by doctor-blading technique. Platinum-coated counter electrode and liquid Iodide/Iodine electrolyte solution were used to fabricate DSSC’s. The efficiencies of solar cells produced with black carrot, rosella and black raspberry juice were calculated as 0.25%, 0.16% and 0.16% respectively, under a sunny day in Kahramanmaraş-Turkey.