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Dye sensitized solar cells (DSSCs) were fabricated using anthocyanin dye and polymer electrolyte with ammonium iodide (NH4I) salt. The study was designed to focus on increasing the efficiency of the DSSC. DSSC using 26.9 wt. % chitosan-22 wt. % NH4I(+2.2 wt.% I2)-48.9 wt. % IL solid electrolyte, black rice anthocyanin with Pt counter electrode showed Jsc of 172 μA cm−2 and Voc of 195 mV. The performance of the cell with Pt electrode was further improved by coating a blocking layer on the indium tin oxide (ITO) substrate. The black rice DSSC using 11 wt. % (chitosan:PEO, wt. ratio 30:70)-9 wt. % NH4I-80 wt. % BMII gel electrolyte exhibited Jsc of 1213 μA cm−2, Voc of 400 mV, FF of 0.47, and η of 0.23%. The red cabbage anthocyanin DSSC containing (phthaloyl chitosan-PEO)-NH4I-BMII gel electrolyte using tartaric acid to adjust the pH of anthocyanin solution showed the best performance with the fill factor of 0.39, Jsc of 3503 μA cm−2, Voc of 340 mV, and an overall conversion efficiency of 0.46%

international journal of photoenergy

TiO2/Chitosan-NH4I(+I2)-BMII-Based Dye-Sensitized Solar Cells with Anthocyanin Dyes Extracted from Black Rice and Red Cabbage