The Effect of Post-Heating Temperature on of the Eficency of Dye Sensitized Solar Cell (DSSC) with Using ZnO Thin Film and Dye from Dutch Eggplant Fruit (Solanum betaceum)

Abstract

Synthesis of Dye Sensitized Solar Cell (DSSC) was successfully carried out using ZnO thin film and Red Dutch eggplant fruit (Solanum betaceum) as a sensitizing (dye) coloring molecule. Preparation of ZnO thin film was carried out on Indium Thin Oxide (ITO) glass substrate using sol-gel spin coating method with 1800 rpm rotation speed and post-heating with temperature variations of 400, 450, 500, 550 and 600°C. The results of the characterization of ZnO thin films with XRD showed all the crystal structures in the form of hexagonal wurtzite and ZnO crystal size of at least 24.1 nm at 400°C. UV-Vis characterization results showed the smallest energy band gap 3.20 eV at 600°C. The maximum efficiency of DSSC is 0.019 86 % at a temperature of 500°C.