Numerical simulations reveal optimal layer thicknesses improve power conversion efficiency in solid-state dye-sensitized solar cells, indicating their potential effectiveness.
This study performs numerical simulations to analyze the electrical characteristics of a solid-state dye-sensitized solar cell (ss-DSSC) using copper-zinc-germanium-tin-sulfide (CZGTS) under AM1.5 G radiation (100 mW/cm 2 ). The impact of carrier recombination dynamics and quasi-Fermi level splitting on the open-circuit voltage (Voc) is explored, alongside the relationships between short-circuit current density (Jsc), fill factor (FF), and power conversion efficiency (PCE). The model was validated with experimental data, showing less than a 3% deviation. A multi-dimensional parameter sensitivity analysis highlighted the optimal layer thicknesses for the hole transport layer (HTL), electron transport layer (ETL), and dye layer, achieving maximum power conversion efficiency (PCE) at 600 nm HTL, 50 nm ETL, and 3000 nm dye layer.
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Sun et al. (2025) studied this question.
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