Natural Dye from Plant in the Application for DSSC

Authors

Chabou Aziza
Chemistry Laboratory of Materials Interfaces Applied to the Environment, Algeria
Cheknane Benomar
Chemistry Laboratory of Materials Interfaces Applied to the Environment, Algeria
Zeffouni Zakia
Chemistry Laboratory of Materials Interfaces Applied to the Environment, Algeria
Zermane Faiza
Chemistry Laboratory of Materials Interfaces Applied to the Environment, Algeria

Synopsis

This study is based on the extraction of a photonsensitizer from plant for use as a light sensor in a DSSC dye-sensitized solar cell. According to the FT IR spectra, the dye represents the existing carboxyl group corresponding to the CO=OH stretching vibrations, which is an important functional group that exhibits a reversible bond with a high equilibrium binding constant that enables the photosensitizer to be established with the TiO2 surface in DSSC. The electrical performance of the cell, such as short-circuit current density (JSC), open-circuit voltage (VOC), fill factor (FF) and overall conversion efficiency (η), was also investigated via measurement of the current-voltage characteristic, as well as the light absorption of the dye loaded onto the TiO2 film. The resulting study showed that a higher ratio of active compound and greater interaction between dye and TiO2 will lead to higher conversion efficiencies.

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Published
December 4, 2024