Poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA)-based inverted perovskite solar cells (PSCs) are the most efficient device type reported to date. Nevertheless, the high hydrophobicity of PTAA and the nonradiative recombination loss significantly limit the repeatability and the performances of these devices. In this study, polyvinyl oxide (PEO) and tetra-n-propylammonium bromide (TPAB) were introduced to overcome the hydrophobicity of PTAA and the anode and cathode interface nonradiative recombination losses through the synergistic effect of these materials. The results showed that the PEO could dramatically improve the wetting properties of the perovskite precursor on the PTAA surface, correspondingly enhancing the microstructure of the film, eliminating the defects, and enhancing the anode interfacial contact of the device. The performances and performance repeatability of the devices were greatly improved. The ratio of the short-circuited devices decreased from 44.23% to 0%, and the average power conversion efficiency (PCE) increased dramatically. In addition, a facile TPAB surface treatment strategy was proposed to reduce the potential threat of PEO introduction to the device stability as well as improve the cathode interface contact problems of the device. Owing to the synergistic effect of the PEO and TPAB, the performance and stability were both enhanced. The highest PCE of 21.62% was achieved, and the average PCE of TPAB devices could be maintained at 80% for 298 h (in air, 23°C, 25 RH%) and 96% for 217 d (in N₂, 23°C) of the initial PCE value. The synergistic dual-interface modification strategy proposed in this paper lights the way for the preparation of highly reproducible, efficient, and stable PTAA-based inverted perovskite solar cells.

基于聚[双（4-苯基）（2,4,6-三甲基苯基）胺]（PTAA）的倒置钙钛矿太阳能电池（PSC）是迄今为止报道的最有效的器件类型。然而，PTAA 的高疏水性和非辐射复合损失显着限制了这些器件的可重复性和性能。在这项研究中，引入了聚氧化乙烯 (PEO) 和四正丙基溴化铵 (TPAB)，以通过这些材料的协同作用克服 PTAA 的疏水性和阳极和阴极界面的非辐射复合损失。结果表明，PEO可以显着提高钙钛矿前驱体在PTAA表面的润湿性能，相应地增强薄膜的微观结构，消除缺陷，增强器件的阳极界面接触。器件的性能和性能重复性大大提高。短路器件的比例从44.23%下降到0%，平均功率转换效率（PCE）显着提高。此外，提出了一种简便的TPAB表面处理策略，以减少PEO引入对器件稳定性的潜在威胁，并改善器件的阴极界面接触问题。由于PEO和TPAB的协同作用，性能和稳定性都得到了提高。最高PCE达到21.62%，TPAB装置的平均PCE在298 h（空气，23°C，25 RH%）和96% 217 d（N 平均功率转换效率（PCE）显着提高。此外，提出了一种简便的TPAB表面处理策略，以减少PEO引入对器件稳定性的潜在威胁，并改善器件的阴极界面接触问题。由于PEO和TPAB的协同作用，性能和稳定性都得到了提高。最高PCE达到21.62%，TPAB装置的平均PCE在298 h（空气，23°C，25 RH%）和96% 217 d（N 平均功率转换效率（PCE）显着提高。此外，提出了一种简便的TPAB表面处理策略，以减少PEO引入对器件稳定性的潜在威胁，并改善器件的阴极界面接触问题。由于PEO和TPAB的协同作用，性能和稳定性都得到了提高。最高PCE达到21.62%，TPAB装置的平均PCE在298 h（空气，23°C，25 RH%）和96% 217 d（N 由于PEO和TPAB的协同作用，性能和稳定性都得到了提高。最高PCE达到21.62%，TPAB装置的平均PCE在298 h（空气，23°C，25 RH%）和96% 217 d（N 由于PEO和TPAB的协同作用，性能和稳定性都得到了提高。最高PCE达到21.62%，TPAB装置的平均PCE在298 h（空气，23°C，25 RH%）和96% 217 d（N₂ , 23°C) 的初始 PCE 值。本文提出的协同双界面改性策略为制备高重现性、高效和稳定的 PTAA 基倒置钙钛矿太阳能电池指明了方向。