Royo Raquel, Sánchez José G, Li Wenhui, Martinez-Ferrero Eugenia, Palomares Emilio, Andreu Raquel, Franco Santiago
Instituto de Nanociencia y Materiales de Aragón (INMA), Departamento de Química Orgánica, CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain.
Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology (ICIQ-BIST), Avinguda Països Catalans 16, 43007 Tarragona, Spain.
Nanomaterials (Basel). 2023 Jul 10;13(14):2042. doi: 10.3390/nano13142042.
Hole-transporting materials (HTMs) have demonstrated their crucial role in promoting charge extraction, interface recombination, and device stability in perovskite solar cells (PSCs). Herein, we present the synthesis of a novel dopant-free spiro-type fluorine core-based HTM with four ethoxytriisopropylsilane groups () for inverted planar perovskite solar cells (iPSCs). The thickness of the influences the performance of iPSCs. The best-performing iPSC is achieved with a 0.8 mg/mL solution (ca. 15 nm thick) and exhibits a power conversion efficiency (PCE) of 15.77%, with = 20.00 mA/cm, = 1.006 V, and FF = 80.10%. As compared to devices based on PEDOT:PSS, the iPSCs based on exhibit a higher , leading to a higher PCE. Additionally, it has been found that can more effectively suppress charge interfacial recombination in comparison to PEDOT:PSS, which results in an improvement in fill factor. Therefore, , a facilely processed and efficient hole-transporting material, presents a promising cost-effective alternative for inverted perovskite solar cells.
空穴传输材料（HTMs）已在促进钙钛矿太阳能电池（PSCs）的电荷提取、界面复合和器件稳定性方面展现出关键作用。在此，我们展示了一种用于倒置平面钙钛矿太阳能电池（iPSCs）的新型无掺杂螺环型氟核基HTM的合成，该HTM带有四个乙氧基三异丙基硅烷基团（）。[此处原文缺失具体指代内容]的厚度会影响iPSCs的性能。使用0.8 mg/mL的[此处原文缺失具体指代内容]溶液（约15 nm厚）可实现性能最佳的iPSC，其功率转换效率（PCE）为15.77%，其中Jsc = 20.00 mA/cm²，Voc = 1.006 V，填充因子（FF） = 80.10%。与基于PEDOT:PSS的器件相比，基于[此处原文缺失具体指代内容]的iPSCs具有更高的Jsc，从而导致更高的PCE。此外，已发现与PEDOT:PSS相比，[此处原文缺失具体指代内容]能够更有效地抑制电荷界面复合，这导致填充因子得到改善。因此，[此处原文缺失具体指代内容]作为一种易于加工且高效的空穴传输材料，为倒置钙钛矿太阳能电池提供了一种有前景的具有成本效益的替代方案。
