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<p>This study focuses on the development and optimization of a high-efficiency GaAs-based bifacial solar cell using simulation software (COMSOL and PC1D). The goal is to create a cell with both monofacial and bifacial light capture capabilities. The approach involves multiple layers, employing different materials with varying doping levels and bandgaps for targeted light absorption across the solar spectrum. Performance comparisons are drawn between the simulated electrical generation capabilities of the monofacial and bifacial cell designs. The properties of the bifacial cell are analyzed to gain a deeper understanding of its behaviour, allowing for further optimization of the design. The successful design of a GaAs-based bifacial solar cell paves the way for further research and development in this promising area of solar technology. The comparative analysis of electric generation capabilities between monofacial and bifacial designs provides insights into the advantages and trade-offs of each configuration. Bifacial solar cells exhibit superior performance in terms of overall energy output and efficiency, especially in environments with high levels of diffuse or reflected sunlight. The GaAs solar cell was developed from scratch, simulated, and optimized to improve efficiency and properties. The cell structures were created and simulated using PC1D and COMSOL Multiphysics, and outputs were validated using various software for both monofacial and bifacial structures. The main PV cell is a PN junction cell with three layers of generation or light capture. The generation layer absorbs light between 300 and 900 nm with good efficiency, optimizing the bandgap to avoid broken junctions. The CAP layer, a byproduct of the cell fabrication, is thin and responsible for good conduction. The back surface field (BSF) layer is used to increase cell output and efficiency. The final optimized structure includes heavily doped CAP and BSF layers, with the ARC layer consisting of dual layers of AAO and TiO<sub>2</sub>. The efficiency increased from 13.34 to 25.12% and the maximum power output increased from 13.30 to 25.12 mW.</p>

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Design, optimization and performance enhancement of newly developed AlGaAs/GaAs-based multijunction bifacial solar cells using computational modelling techniques of COMSOL and PC1D

  • 期刊论文

  • 发表日期：

    2026年6月26日

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  • Kunal Chowdhury,
  • Subhajit Pal,
  • Subhajit Saha,
  • Utpal Gangopadhyay,
  • Ratan Mandal

摘要

This study focuses on the development and optimization of a high-efficiency GaAs-based bifacial solar cell using simulation software (COMSOL and PC1D). The goal is to create a cell with both monofacial and bifacial light capture capabilities. The approach involves multiple layers, employing different materials with varying doping levels and bandgaps for targeted light absorption across the solar spectrum. Performance comparisons are drawn between the simulated electrical generation capabilities of the monofacial and bifacial cell designs. The properties of the bifacial cell are analyzed to gain a deeper understanding of its behaviour, allowing for further optimization of the design. The successful design of a GaAs-based bifacial solar cell paves the way for further research and development in this promising area of solar technology. The comparative analysis of electric generation capabilities between monofacial and bifacial designs provides insights into the advantages and trade-offs of each configuration. Bifacial solar cells exhibit superior performance in terms of overall energy output and efficiency, especially in environments with high levels of diffuse or reflected sunlight. The GaAs solar cell was developed from scratch, simulated, and optimized to improve efficiency and properties. The cell structures were created and simulated using PC1D and COMSOL Multiphysics, and outputs were validated using various software for both monofacial and bifacial structures. The main PV cell is a PN junction cell with three layers of generation or light capture. The generation layer absorbs light between 300 and 900 nm with good efficiency, optimizing the bandgap to avoid broken junctions. The CAP layer, a byproduct of the cell fabrication, is thin and responsible for good conduction. The back surface field (BSF) layer is used to increase cell output and efficiency. The final optimized structure includes heavily doped CAP and BSF layers, with the ARC layer consisting of dual layers of AAO and TiO2. The efficiency increased from 13.34 to 25.12% and the maximum power output increased from 13.30 to 25.12 mW.