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Performance analysis of a coupled concentrated spectrum splitting perovskite solar cell and thermally regenerative electrochemical cycles system

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  • Wang, Qinger
  • Huang, Yuewu
  • Sun, Wenchao

Abstract

The limited efficiency and poor utilization of the solar spectrum are major challenges in solar energy conversion. An integrated system combining perovskite solar cell (PSC) with thermally regenerative electrochemical cycles (TRECs) and spectrum splitting is proposed to address these issues. By leveraging thermodynamic analysis, semiconductor physics, and electrochemical theory, a mathematical model is developed to account for irreversible losses and optimize system performance. The key findings include a peak efficiency of 35.98 %, approximately 16 percentage points higher than a standalone PSC. The introduction of a spectrum splitter improves efficiency by five percentage points compared to a traditional PSC-TRECs system without the splitter. Additionally, the study identifies an optimal voltage at which the radiative recombination loss of the PSC is minimized, while operating at a low temperature. Parameter analysis shows that reducing the absorber-to-TRECs area ratio increases energy transfer to the TRECs module, boosting overall system efficiency. These results provide valuable insights for optimizing hybrid solar systems.

Suggested Citation

  • Wang, Qinger & Huang, Yuewu & Sun, Wenchao, 2025. "Performance analysis of a coupled concentrated spectrum splitting perovskite solar cell and thermally regenerative electrochemical cycles system," Renewable Energy, Elsevier, vol. 244(C).
    • Handle: RePEc:eee:renene:v:244:y:2025:i:c:s0960148125002940
    DOI: 10.1016/j.renene.2025.122632
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