Dye-Sensitized Solar Cells (DSSCs) Based on Extracted Natural Dyes

By A. Ammar, H. S. Mohamed, Moataz M. K. Yousef, Ghada M. Abdel-Hafez, A. Hassanien, A. Khalil. Journal of nanomaterials, 2019

161 citations recorded by the source corpus.

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.

Subfields: Materials Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/99a94934a62762f575d700366eae8a2c4001c79e