The article presents a comprehensive optoelectrical model for perovskite/perovskite/silicon (PPS) triple-junction solar cells, developed using Sentaurus TCAD. The model is validated against experimental data from a state-of-the-art PPS cell, ensuring its accuracy in describing the cell's optical behavior. The authors outline a roadmap for optimizing the optical properties of PPS cells, focusing on adjusting perovskite layer thicknesses and bandgaps to achieve current matching between subcells, implementing a fully textured structure, and minimizing interlayer thicknesses. These steps are shown to significantly enhance the photocurrent density and efficiency. Specifically, adjusting perovskite layer thicknesses increases the photocurrent density from 8.7 to 11.8 mA cm\(^{-2}\), and further optimizing bandgaps leads to a photocurrent density of 13.3 mA cm\(^{-2}\) and an efficiency of 41.9%. The incorporation of a textured front side enhances the photocurrent density to 13.9 mA cm\(^{-2}\), and minimizing interlayer thicknesses further improves the efficiency to 44.3%. This practical efficiency potential is compared with single silicon and perovskite/silicon tandem cells, showing that PPS triple-junction cells have a higher theoretical limit due to lower thermalization losses. The study highlights the potential of PPS triple-junction solar cells as a cost-effective and highly efficient photovoltaic technology.The article presents a comprehensive optoelectrical model for perovskite/perovskite/silicon (PPS) triple-junction solar cells, developed using Sentaurus TCAD. The model is validated against experimental data from a state-of-the-art PPS cell, ensuring its accuracy in describing the cell's optical behavior. The authors outline a roadmap for optimizing the optical properties of PPS cells, focusing on adjusting perovskite layer thicknesses and bandgaps to achieve current matching between subcells, implementing a fully textured structure, and minimizing interlayer thicknesses. These steps are shown to significantly enhance the photocurrent density and efficiency. Specifically, adjusting perovskite layer thicknesses increases the photocurrent density from 8.7 to 11.8 mA cm\(^{-2}\), and further optimizing bandgaps leads to a photocurrent density of 13.3 mA cm\(^{-2}\) and an efficiency of 41.9%. The incorporation of a textured front side enhances the photocurrent density to 13.9 mA cm\(^{-2}\), and minimizing interlayer thicknesses further improves the efficiency to 44.3%. This practical efficiency potential is compared with single silicon and perovskite/silicon tandem cells, showing that PPS triple-junction cells have a higher theoretical limit due to lower thermalization losses. The study highlights the potential of PPS triple-junction solar cells as a cost-effective and highly efficient photovoltaic technology.