Organic-inorganic hybrid perovskite solar cells (PSCs) possess the promising potential to substitute photovoltaic technologies in the traditional model. The modified SnO₂ as an electron-transporting layer (ETL) has been studied extensively because of its excellent properties. Herein, we implemented the TaCl₅ doped SnO₂ ETL in the n-i-p structure perovskite solar cells. The doped SnO₂ solution was demonstrated the characterization of neutral power of value and hydrophobicity. The conduction band of changed ETLs shifted downward by 0.26 eV resulting in the efficient electron transfer. Furthermore, the doped SnO₂ films affect the perovskite crystallite size with passivated traps and reduced nonradiative recombination loss. After employing TaCl₅-doped SnO₂ ETL, the open-circuit voltage enhances from 0.97 to 1.08 V and a united power conversion efficiency increases from 16.38% to 18.23% achieved when adopted 1.0 wt% doped TaCl₅–SnO₂ TEL. The developed doping method provides an effective method to passivate SnO₂ for fabricating high-performance perovskite solar cells.

有机-无机混合钙钛矿太阳能电池（PSC）具有在传统模型中替代光伏技术的潜力。改性的SnO ₂作为电子传输层（ETL），由于其优异的性能而得到了广泛的研究。在这里，我们在钙钛矿型太阳能电池的压区结构中实现了TaCl ₅掺杂的SnO ₂ ETL。证实了掺杂的SnO ₂溶液具有中性值和疏水性的特征。改变的ETL的导带向下移动0.26 eV，从而实现有效的电子转移。此外，掺杂的SnO ₂薄膜会钝化陷阱并降低非辐射重组损失，从而影响钙钛矿微晶尺寸。使用TaCl ₅掺杂的SnO ₂ ETL后，开路电压从0.97 V增加到1.08 V，并且采用1.0 wt％掺杂的TaCl ₅ -SnO ₂ TEL时，单位功率转换效率从16.38％增加到18.23％。所开发的掺杂方法提供了一种钝化SnO ₂的有效方法，用于制造高性能钙钛矿太阳能电池。