In addition to their efficiency, the stability of DSSCs is also a key consideration. The short-circuit current density (Jsc) of anthocyanin dye-based DSSCs dropped from the original 0.91 mA/cm2 to 0.73 mA/cm2 and to 0.45 mA/cm2 after being subjected to irradiation for 30 and 120 min, respectively [3]. In contrast, orange juice and eggplant acidic extract dye-based DSSCs remained stable under irradiation with AM 1.5 for 3 and 6 h, respectively [5]. To overcome the problem of the instability of natural dye-based DSSCs, various techniques have been examined, for example, the addition of sugar [4]. Besides being more stable, anthocyanin dye-based DSSCs with added sugar displayed an additional slight increase of efficiency. Another method proposed the addition of HCl into the anthocyanin dye to adjust the pH to approximately 1, because the formation of the flavylium ion form is favorable at low pH [2]. Unfortunately, unlike benzoic acid (C6H5COOH), HCl contains no carboxylic functional groups to act as anchorage between the dyes and the TiO2 surfaces.