Physics

Lead-Free Perovskite Solar Cells Show Promise as Safer Alternative

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Machine learningPhotovoltaics

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This study uses SCAPS-1D simulation software combined with machine learning to analyze the performance of lead-free perovskite solar cells based on potassium double perovskite K₂AgSbBr₆. The researchers numerically modeled various device configurations and parameters to optimize the solar cell efficiency, investigating factors such as layer thickness, defect density, and carrier concentrations. Machine learning techniques were applied to predict optimal device performance and identify key parameters affecting the power conversion efficiency of these environmentally friendly, lead-free solar cells.


Lead-based perovskite solar cells show excellent efficiency but pose environmental and health concerns. This research advances the development of non-toxic, lead-free alternatives using earth-abundant potassium-based materials, which could enable safer, sustainable solar energy technology at scale while maintaining competitive performance.


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Source: Numerical modeling and machine learning insight into potassium-based lead-free $$text {K}_{2}text {AgSbBr}_{6}$$ perovskite solar cells using SCAPS-1D