Perovskite solar cells (PSCs) with efficiencies greater than 20% have been realized mostly with expensive spiro‐MeOTAD hole‐transporting material. PSCs are demonstrated that achieve stabilized efficiencies exceeding 20% with straightforward low‐cost molecularly engineered copolymer poly(1‐(4‐hexylphenyl)‐2,5‐di(thiophen‐2‐yl)‐1H‐pyrrole) (PHPT‐py) based on Rutin–silver nanoparticles (AgNPs) as the hole extraction layer. The Rutin–AgNPs additive enables the creation of compact, highly conformal PHPT‐py layers that facilitate rapid carrier extraction and collection. The spiro‐MeOTAD‐based PSCs show comparable efficiency, although their operational stability is poor. This instability originated from potential‐induced degradation of the spiro‐MeOTAD/Au contact. The addition of conductive Rutin–AgNPs into PHPT‐py layer allows PSCs to retain >97% of their initial efficiency up to 60 d without encapsulation under relative humidity. The PHPT‐py/ Rutin–AgNPs‐based devices surpass the stability of spiro‐MeOTAD‐based PSCs and potentially reduce the fabrication cost of PSCs.

中文翻译：

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新型分子工程芦丁-银纳米颗粒/噻吩共聚物实现了超过 20% 的钙钛矿太阳能电池的卓越稳定性和效率

效率超过 20% 的钙钛矿太阳能电池 (PSC) 主要是通过昂贵的螺MeOTAD 空穴传输材料实现的。事实证明，PSC 通过简单的低成本分子工程共聚物聚（1-（4-己基苯基）-2,5-二（噻吩-2-基）-1 H-吡咯）（PHPT-py）可实现超过 20% 的稳定效率）基于芦丁-银纳米颗粒（AgNP）作为空穴提取层。芦丁-AgNPs 添加剂能够形成紧凑、高度共形的 PHPT-py 层，有利于快速载体提取和收集。基于spiro-MeOTAD的PSC表现出相当的效率，尽管它们的运行稳定性较差。这种不稳定性源于电位诱导的spiro-MeOTAD/Au 接触的降解。在 PHPT-py 层中添加导电芦丁-银纳米粒子，可使 PSC 在相对湿度下无需封装的情况下，在长达 60 天的时间内保持 > 97% 的初始效率。基于 PHPT-py/ Rutin-AgNPs 的器件超越了基于 spiro-MeOTAD 的 PSC 的稳定性，并有可能降低 PSC 的制造成本。