Top-ranked efficiency under indoor light of DSSCs enabled by iodide-based DES-like solvent electrolyte

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Abstract

This work presents the next paradigm shift in solar energy technology in which a novel iodide-based DES-like mixture has been first investigated as an active electrolyte solvent in dye-sensitized solar cells (DSSCs) in the absence of any co-solvent and any external iodide source. The optimization of the cell design jointly with a bespoke dye functionalized with a hydrophobic chain, properly positioned along the molecular backbone, ensures (a) one of the highest power conversion efficiencies (PCEs) up to 4% for DSSCs based on non-VOC solvents, and (b) a remarkable temporal stability of nearly 95% over a period longer than 2 months. Higher power conversion efficiency values (up to 8.0%) than those reported in the literature with traditional sensitizers and environmentally friendly electrolytes (e.g., water-based electrolytes) have been achieved under low-light illumination. These results are very promising for the realization of next-generation nature-inspired low-cost and high-performing DSSC devices for indoor and outdoor applications.

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APA

Boldrini, C. L., Quivelli, A. F., Perna, F. M., Biagini, P., Capriati, V., Abbotto, A., & Manfredi, N. (2023). Top-ranked efficiency under indoor light of DSSCs enabled by iodide-based DES-like solvent electrolyte. Sustainable Energy and Fuels, 8(3), 504–515. https://doi.org/10.1039/d3se00949a

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