In this study, we improved the performance of perovskite solar cells (PSCs) by employing an organic-inorganic hybrid hole transport bilayer of poly(triarylamine)/molybdenum trioxide (PTAA/MoO₃). We find that, by depositing a thin MoO₃ layer onto PTAA, the charge transport property of the PSCs can be improved. Consequently, average power conversion efficiency (PCE) of the PSCs was significantly improved from 14.2 to 16.8%, which was mainly induced from the largely enhanced short-circuit current density and fill factor. The best PSC from the 3 nm MoO₃ based group showed a champion PCE of 17.1% with a stable power output and negligible hysteresis.

在这项研究中，我们通过使用聚三芳基胺/三氧化钼（PTAA / MoO ₃）的有机-无机杂化空穴传输双层来改善钙钛矿太阳能电池（PSC）的性能。我们发现，通过在PTAA上沉积一层MoO ₃薄层，可以改善PSC的电荷传输性能。因此，PSC的平均功率转换效率（PCE）从14.2显着提高到16.8％，这主要是由于短路电流密度和填充系数大大提高所致。基于3 nm MoO ₃的组中最好的PSC显示出17.1％的最佳PCE，具有稳定的功率输出和可忽略的磁滞。