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首页> 外文期刊>Advanced energy materials >High-Performance and Stable Perovskite Solar Cells Based on Dopant-Free Arylamine-Substituted Copper(Ⅱ) Phthalocyanine Hole-Transporting Materials
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High-Performance and Stable Perovskite Solar Cells Based on Dopant-Free Arylamine-Substituted Copper(Ⅱ) Phthalocyanine Hole-Transporting Materials

机译：基于掺杂剂芳基胺取代的铜（Ⅱ）酞菁空穴传输材料的高性能和稳定的钙钛矿太阳能电池

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摘要

A power conversion efficiency (PCE) as high as 19.7% is achieved using a novel, low-cost, dopant-free hole transport material (HTM) in mixed-ion solution-processed perovskite solar cells (PSCs). Following a rational molecular design strategy, arylamine-substituted copper(II) phthalocyanine (CuPc) derivatives are selected as HTMs, reaching the highest PCE ever reported for PSCs employing dopant-free HTMs. The intrinsic thermal and chemical properties of dopant-free CuPcs result in PSCs with a long-term stability outperforming that of the benchmark doped 2,2 ',7,7 '-Tetrakis-(N,N-di-p-methoxyphenylamine)-9,9 '-Spirobifluorene (Spiro-OMeTAD)-based devices. The combination of molecular modeling, synthesis, and full experimental characterization sheds light on the nanostructure and molecular aggregation of arylamine-substituted CuPc compounds, providing a link between molecular structure and device properties. These results reveal the potential of engineering CuPc derivatives as dopant-free HTMs to fabricate cost-effective and highly efficient PSCs with long-term stability, and pave the way to their commercial-scale manufacturing. More generally, this case demonstrates how an integrated approach based on rational design and computational modeling can guide and anticipate the synthesis of new classes of materials to achieve specific functions in complex device structures.
机译：使用混合离子溶液加工的Perovskite太阳能电池（PSC）中的新颖，低成本，无掺杂孔输送材料（HTM）实现高达19.7％的功率转换效率（PCE）。在合理的分子设计策略之后，选择芳基胺取代的铜（II）酞菁（CUPC）衍生物作为HTMS，达到迄今为止使用无掺杂剂HTMS的PSC的最高PCE。掺杂剂无掺杂剂的CupCs的内在热和化学性质导致PSC具有长期稳定性，优于基准掺杂的2,2'，7,7'-Tetrakis-（N，N-Di-P-甲氧基胺）的长期稳定性。 9,9'-甘油桶（Spiro-Ometad）基于设备。分子建模，合成和全实验表征的组合在芳基胺取代的Cupc化合物的纳米结构和分子聚集下脱光，提供了分子结构与装置性质之间的联系。这些结果揭示了工程CUPC衍生物作为无掺杂剂HTM的潜力，以制造具有长期稳定性的成本效益和高效的PSC，并为其商业规模制造提供铺平道路。更一般地，这种情况表明了基于合理设计和计算建模的综合方法如何指导和预测新类材料的合成，以实现复杂的装置结构中的特定功能。

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