Abstract
Two of the most serious problems that we encounter today are the energy crisis and global warming. It has, therefore, become essential for a quest for clean and renewable energy sources, as the lasting solution for these problems. This paper presents the natural pigments from the facile extraction of fruit peels of Musa paradisiaca, Mangifera indica, Punica granatum, and Ananas comosus and their conversion efficiency in dye-sensitized solar cells (DSSCs). The zinc oxide (ZnO) photo-anode film was prepared and its properties were analyzed. Natural extracts were used as photosensitizers for constructing DSSCs. Characteristics of the natural Pigments were analyzed by various spectroscopy techniques. Solar to electrical energy efficiencies of natural dye-based on ZnO DSSCs were evaluated for Musa paradisiaca, Mangifera indica, Punica granatum, and Ananas comosus to be 0.009%, 0.024%, 0.010%, and 0.002%, respectively. The conversion of visible light into electricity resulting in improved photoelectric characteristics was achieved.
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