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In this work, a novel SnS2/MgF2 1D photonic crystal (PhC) is proposed as back reflector to enhance the photoconversion efficiency (PCE) of DSSCs. The transfer matrix method is used in analysing the optical properties of the proposed PhC and simulation is done using MATLAB software. The transmittance study is done to determine the photonic bandgap of the proposed PhC. Then, TiO2-based DSSC is theoretically designed, and its parameters are determined with and without SnS2/MgF2 PhC back reflector. Further, the calculations were done by varying the thicknesses of PhC layers with respect to Bragg’s wavelength (λB), to achieve maximum efficiency. The enhanced solar cell parameters such as JSC, VOC and PCE are 7.03 mA/cm2, 0.879 V and 4.9% respectively, for DSSC incorporated with our proposed PhC back reflector at optimized thickness at λB = 600 nm, making it a potential candidate for an eco-friendly, cost-effective back reflector for DSSCs.

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Enhancing the Photoconversion Efficiency of Dye-Sensitized Solar Cells Using Novel 1D Photonic Crystal as Back Reflector

  • 会议论文

  • 发表日期：

    2026年

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  • G. Amal Sundar,
  • K. S. Joseph Wilson

摘要

In this work, a novel SnS2/MgF2 1D photonic crystal (PhC) is proposed as back reflector to enhance the photoconversion efficiency (PCE) of DSSCs. The transfer matrix method is used in analysing the optical properties of the proposed PhC and simulation is done using MATLAB software. The transmittance study is done to determine the photonic bandgap of the proposed PhC. Then, TiO2-based DSSC is theoretically designed, and its parameters are determined with and without SnS2/MgF2 PhC back reflector. Further, the calculations were done by varying the thicknesses of PhC layers with respect to Bragg’s wavelength (λB), to achieve maximum efficiency. The enhanced solar cell parameters such as JSC, VOC and PCE are 7.03 mA/cm2, 0.879 V and 4.9% respectively, for DSSC incorporated with our proposed PhC back reflector at optimized thickness at λB = 600 nm, making it a potential candidate for an eco-friendly, cost-effective back reflector for DSSCs.