Figure 4 shows the J-V (current density-voltage) curve for all the sensitizers. The power conversion efficiency of the cell sensitized by Morus atba Lam extracted from acidified ethanol was significantly higher than that sensitized by the S. hermonthica. This is due to the broader range of light absorption of the extract for TiO2, and the higher interaction between TiO2 and the anthocyanin in the M. atba Lam extract that resulted in a better charge transfer.