The conversion efficiencies (g%) of the cells sensitized with extracts of Blue pea (0.05%), Annatto (0.19%), Norbixin (0.13%), Spinach (0.13%), Fructus lycii (0.17%), and Lily (0.17%) were poor (less than 0.2%) compared to Siahkooti dye. Some of the dyes extracted from Ipomoea (0.27%), Begonia (0.24%), Tangerine peel (0.28%), Marigold (0.23%), yellow rose (0.26%), China loropetal (0.27%), Chinese rose (0.27%), and Dragon fruit (0.22%) showed efficiencies
similar to Siahkooti extracted dye [23,28,29]. The reported photoelectrical characteristic of the above mentioned natural-dye-based DSSCs were: fill factors from 0.20 to 0.70, the short-circuit currents from 0.2 to 0.8 mA/cm2, and the open-circuit voltages from 0.2 to 0.6 V, whereas in this study, a higher fill factor (up to 0.70) was obtained compared to the other natural dyes.
The conversion efficiencies (g%) of the cells sensitized with extracts of Blue pea (0.05%), Annatto (0.19%), Norbixin (0.13%), Spinach (0.13%), Fructus lycii (0.17%), and Lily (0.17%) were poor (less than 0.2%) compared to Siahkooti dye. Some of the dyes extracted from Ipomoea (0.27%), Begonia (0.24%), Tangerine peel (0.28%), Marigold (0.23%), yellow rose (0.26%), China loropetal (0.27%), Chinese rose (0.27%), and Dragon fruit (0.22%) showed efficienciessimilar to Siahkooti extracted dye [23,28,29]. The reported photoelectrical characteristic of the above mentioned natural-dye-based DSSCs were: fill factors from 0.20 to 0.70, the short-circuit currents from 0.2 to 0.8 mA/cm2, and the open-circuit voltages from 0.2 to 0.6 V, whereas in this study, a higher fill factor (up to 0.70) was obtained compared to the other natural dyes.
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