Dye-Sensitized Solar Cells (DSSCs) Based on Extracted Natural Dyes. (18th April 2019)

• Record Type: Journal Article
• Authors: Ammar, Ahmed M.; Mohamed, Hemdan S. H.; Yousef, Moataz M. K.; Abdel-Hafez, Ghada M.; Hassanien, Ahmed S.; Khalil, Ahmed S. G.
• Other Names: Nishikiori Hiromasa Academic Editor.
• Is Part Of: Journal of nanomaterials. Volume 2019(2019)
• Publication Date: 2019-04-18
• Subjects: Nanostructured materials -- Periodicals; Nanotechnology -- Periodicals; Nanomatériaux; Nanostructured materials; Nanotechnology; Nanostructures; Nanotechnology; Periodicals; Fulltext; Internet Resources; Periodicals; 620.115
• DOI: 10.1155/2019/1867271
• Languages: English
• ISSNs: 1687-4110

Abstract

Abstract : Here, three natural dyes were extracted from different fruits and leaves and used as sensitizers for dye-sensitized solar cells (DSSCs). Chlorophyll was extracted from spinach leaves using acetone as a solvent. Anthocyanin was extracted from red cabbage and onion peels using water. Different characterizations for the prepared natural dyes were conducted including UV-vis absorption, FTIR, and steady-state/time-resolved photoluminescence spectroscopy. Various DSSCs based on the extracted dyes were fabricated. The degradation in the power conversion efficiencies was monitored over a week. The effect of the TiO2 mesoporous layers on the efficiency was also studied. The interfaces between the natural dyes and the TiO2 layers were investigated using electrochemical impedance spectroscopy.