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September 3, 2026Materials Today CommunicationsOpen Access

High-Performance Earth-Abundant Cu2MnSnS4/FeSi2 Dual-Absorber Solar Cells: Computational Optimization Using SCAPS-1D

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Authors

HFHasib Md Abid Bin FaridMKMd Tashfiq Bin Kashem

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Overview

Computational modeling demonstrates a 34.9% power conversion efficiency in Cu2MnSnS4/FeSi2 dual-absorber solar cells, highlighting a sustainable path for high-performance thin-film photovoltaics.

Key Points

  • To design and computationally optimize a novel, earth-abundant dual-absorber solar cell combining Cu2MnSnS4 (CMTS) and FeSi2 to enhance broad-spectrum light absorption and power conversion efficiency.
  • Modeled a heterojunction solar cell architecture using CMTS and FeSi2 absorbers with CdS as the electron transport layer and Cu2O as the hole transport layer using SCAPS-1D.
  • Systematically evaluated and optimized layer thicknesses, doping levels, defect densities, contact work functions, operating temperatures, and light intensities.
  • Pairing narrow-bandgap FeSi2 with CMTS extended absorption into the near-infrared spectrum, significantly enhancing carrier collection over CMTS visible absorption alone.
  • Achieved an optimized power conversion efficiency of 34.9%, exceeding previous CMTS single-absorber (31.51%) and dual-absorber (12.86%) performance benchmarks.

Cite This Study

Farid et al. (2026) studied this question.

synapsesocial.com/papers/6a9935f3636c6408cfa7ea58https://doi.org/10.1016/j.mtcomm.2026.116040
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