Power, Control, and Data Processing Systems

Power, Control, and Data Processing Systems

Simulation and Characterization of Multi-Junction Solar Cells with Perovskite/Silicon Absorbers

Document Type : Original Research

Authors
Tahereh Tavakoli 1
Alireza Mohaghegh Hazrati 2
Javad Beheshtian 3
1 Faculty of Basic Sciences, Shahid Rajaee Teacher Training University Tehran,Iran
2 Department of Physics, K. N. Toosi University of Technology Tehran, Iran
3 Faculty of Basic Sciences Shahid Rajaee Teacher Training University Tehran, Iran
10.30511/pcdp.2025.2063057.1028
Abstract
With the increasing global demand for clean and renewable energy sources, research on solar cells—particularly perovskite/silicon tandem solar cells—has grown rapidly in recent years. Due to the toxicity of lead present in the structure of perovskite solar cells, which hinders their commercialization, it is necessary to look for alternative elements to replace lead, thereby reducing toxicity and enabling commercial viability. In this study, a computational approach is employed to investigate a multi-junction silicon-perovskite solar cell with the structure: FTO/TiO₂/CH₃NH₃GeI₃/c-Si(n)/c-Si(p)/c-Si(p⁺). In the simulation, the absorber layer CH₃NH₃PbI₃ was replaced with CH₃NH₃GeI₃ as the perovskite absorber in order to improve efficiency and overall solar cell performance. Analysis of the simulation results showed that using CH₃NH₃GeI₃ led to improved performance compared to the initial structure, increasing the power conversion efficiency to 28.98%. Other optimized parameters of the proposed multi-junction solar cell include: Short-circuit current density: 43.51 mA/cm² ,Open-circuit voltage: 0.78 ,Fill Factor: 85.10%
Keywords
Silicon solar cell
Perovskite solar cell
Multi￾junction solar cell
SCAPS simulation software

Subjects

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Power, Control, and Data Processing Systems
Volume 2, Issue 3
Summer 2025
Pages 27-32

  • Receive Date 09 June 2025
  • Revise Date 02 August 2025
  • Accept Date 02 August 2025
  • First Publish Date 02 August 2025
  • Publish Date 01 September 2025