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<p>This paper provides a comprehensive optimization of factors that are desired to attaining perovskite solar cells with a high efficiency. The values are showing that a range of the VBM of 5.1—5.5&#xa0;eV gives the maximum efficiency of 19.80%, while a range of the CBM of 3.4—3.9&#xa0;eV delivers 21.5%. At the same time, a product of series resistance of 1 Ω·cm<sup>2</sup> and shunt resistance of 5000 Ω·cm<sup>2</sup> is responsible for efficiencies of 23.16% and 23.25%, respectively. Reducing the number of interface defects from HTL/absorber and ETL/absorber to ≤ 1.0 × 10<sup>11</sup>&#xa0;cm<sup>−2</sup> and ≤ 1.0 × 10<sup>12</sup>&#xa0;cm<sup>−2</sup> has a significant effect with highest efficiency of 23.71% and 23.94%. Importantly, Correspondingly, when decreasing further the total defect density to ≤ 1.0 × 10<sup>13</sup>&#xa0;cm<sup>−3</sup> and adjusting the absorber thickness to ~ 1&#xa0;μm made them obtain the maximum virtually predicted efficiency of 29.66%. The outcomes of this study provide very important advice on the process of designing and assembly of high-performance perovskite solar cells.</p>

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Comprehensive analysis of transport layers and interface defects in MAPbI3 based PSCs for enhanced efficiency

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年5月2日

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  • Mohsen Saadat,
  • Shahla Bameri

摘要

This paper provides a comprehensive optimization of factors that are desired to attaining perovskite solar cells with a high efficiency. The values are showing that a range of the VBM of 5.1—5.5 eV gives the maximum efficiency of 19.80%, while a range of the CBM of 3.4—3.9 eV delivers 21.5%. At the same time, a product of series resistance of 1 Ω·cm2 and shunt resistance of 5000 Ω·cm2 is responsible for efficiencies of 23.16% and 23.25%, respectively. Reducing the number of interface defects from HTL/absorber and ETL/absorber to ≤ 1.0 × 1011 cm−2 and ≤ 1.0 × 1012 cm−2 has a significant effect with highest efficiency of 23.71% and 23.94%. Importantly, Correspondingly, when decreasing further the total defect density to ≤ 1.0 × 1013 cm−3 and adjusting the absorber thickness to ~ 1 μm made them obtain the maximum virtually predicted efficiency of 29.66%. The outcomes of this study provide very important advice on the process of designing and assembly of high-performance perovskite solar cells.