Planar perovskite solar cells (PPSCs) have received great attention in recent years due to their intriguing properties, which make them a good choice for photovoltaic applications. In this work, the effect of alkali and transition metal-doped TiO₂ (cesium-doped TiO₂ (Cs-TiO₂) and yttrium-doped TiO₂ (Y-TiO₂)) compact layers on the optical, structural and the photovoltaic performance of the PPSCs have been investigated. The perovskite layer syntheses were carried out by depositing a lead iodide (PbI₂) layer via spin-coating; converting PbI₂ into methyl ammonium iodide (CH₃NH₃PbI₃) by chemical vapor deposition (CVD) and spin-coating at 60 min and 60 s conversion times respectively. The as-deposited PPSCs were studied layer-by-layer using an X-ray diffractometer, scanning electron microscope, and UV-vis diffuse reflectance, transmittance and absorbance. The power conversion efficiency for stable processed perovskite solar cells were 3.61% and 12.89% for air and vacuum processed, respectively.

中文翻译：

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碱金属和过渡金属掺杂二氧化钛空穴阻挡层对空气和真空两步连续沉积法制备的钙钛矿太阳能电池的影响

平面钙钛矿太阳能电池（PPSCs）由于其有趣的特性近年来受到了极大的关注，这使其成为光伏应用的良好选择。在这项工作中，碱金属和过渡金属掺杂的 TiO ₂（铯掺杂的 TiO ₂ (Cs-TiO ₂ ) 和钇掺杂的 TiO ₂ (Y-TiO ₂ )）致密层对光学、结构和光伏的影响PPSC 的性能已被研究。钙钛矿层的合成是通过旋涂沉积碘化铅（PbI ₂）层来进行的；将 PbI ₂转化为甲基碘化铵 (CH ₃ NH ₃ PbI₃）通过化学气相沉积（CVD）和旋涂分别在60分钟和60秒的转换时间。使用 X 射线衍射仪、扫描电子显微镜和紫外-可见漫反射率、透射率和吸光度逐层研究沉积的 PPSC。稳定处理的钙钛矿太阳能电池在空气和真空处理下的功率转换效率分别为 3.61% 和 12.89%。