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1 World News of Natural Sciences

1 2024

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Fabrication and Comparison Performance of Dye-Sensitized Solar Cells Based on Single and Cocktail Natural Dyes

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Clement H. N. , Gupta S. , Tsoken G.

World News of Natural Sciences

2024

tom 53

94-107

ABSTRACT Three natural dyes were used in the fabrication of Dye Sensitized Solar Cells (DSSCs): anthocyanin dye from pride of barbados flower and chlorophyll dyes from masquerade tree leaf and pumpkin leaf dye extracts. The chlorophyll and anthocyanin dyes were hybridized in a cocktail in ratio 1:1 by volume. The purpose of the research is to fabricate enhanced DSSCs based on natural dye at low cost.The photoanode was fabricated using P25 TiO2 powder coated on the fluorine doped tin oxide (FTO) conducting surface, using spin coating technique to form a thin film. The experimental results for single dye using masquerade tree leaf (A), pumpkin leaf (B) and pride of barbados flower (C) yield power conversion efficiencies (PCEs) of 0.45%, 0.72% and 1.21%, respectively. Also, the DSSCs based on blended dyes in a cocktail show that the PCE of 0.97%, 1.09% and 0.098% for masquerade tree leaf and pumpkin leaf (AB), masquerade tree leaf and pride of barbados flower (AC) and pumpkin leaf and pride of barbados flower (BC), respectively. The results show that pride of barbados flower (C) dye based DSSC has the highest PCE of 1.21% with an open-circuit voltage (𝑉oc) of 0.85 V, short-circuit current density (Jsc) of 3.59 mA/cm2 and fill factor (FF) of 39.54%.